281191560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:528

約数の個数: 256

約数和(自身を含む): 1005903360

約数和(自身を除く): 724711800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 23, 24, 26, 30, 34, 39, 40, 46, 51, 52, 60, 65, 68, 69, 78, 85, 92, 102, 104, 115, 120, 130, 136, 138, 156, 170, 184, 195, 204, 221, 230, 255, 260, 276, 299, 312, 340, 345, 390, 391, 408, 442, 460, 461, 510, 520, 552, 598, 663, 680, 690, 780, 782, 884, 897, 920, 922, 1020, 1105, 1173, 1196, 1326, 1380, 1383, 1495, 1560, 1564, 1768, 1794, 1844, 1955, 2040, 2210, 2305, 2346, 2392, 2652, 2760, 2766, 2990, 3128, 3315, 3588, 3688, 3910, 4420, 4485, 4610, 4692, 5083, 5304, 5532, 5865, 5980, 5993, 6630, 6915, 7176, 7820, 7837, 8840, 8970, 9220, 9384, 10166, 10603, 11064, 11730, 11960, 11986, 13260, 13830, 15249, 15640, 15674, 17940, 17979, 18440, 20332, 21206, 23460, 23511, 23972, 25415, 26520, 27660, 29965, 30498, 31348, 31809, 35880, 35958, 39185, 40664, 42412, 46920, 47022, 47944, 50830, 53015, 55320, 59930, 60996, 62696, 63618, 71916, 76245, 78370, 84824, 89895, 94044, 101660, 101881, 106030, 117555, 119860, 121992, 127236, 137839, 143832, 152490, 156740, 159045, 179790, 180251, 188088, 203320, 203762, 212060, 235110, 239720, 254472, 275678, 304980, 305643, 313480, 318090, 359580, 360502, 407524, 413517, 424120, 470220, 509405, 540753, 551356, 609960, 611286, 636180, 689195, 719160, 721004, 815048, 827034, 901255, 940440, 1018810, 1081506, 1102712, 1222572, 1272360, 1378390, 1442008, 1528215, 1654068, 1802510, 2037620, 2067585, 2163012, 2343263, 2445144, 2703765, 2756780, 3056430, 3308136, 3605020, 4075240, 4135170, 4326024, 4686526, 5407530, 5513560, 6112860, 7029789, 7210040, 8270340, 9373052, 10815060, 11716315, 12225720, 14059578, 16540680, 18746104, 21630120, 23432630, 28119156, 35148945, 46865260, 56238312, 70297890, 93730520, 140595780, 281191560]

約数ペア:

[(1, 281191560), (2, 140595780), (3, 93730520), (4, 70297890), (5, 56238312), (6, 46865260), (8, 35148945), (10, 28119156), (12, 23432630), (13, 21630120), (15, 18746104), (17, 16540680), (20, 14059578), (23, 12225720), (24, 11716315), (26, 10815060), (30, 9373052), (34, 8270340), (39, 7210040), (40, 7029789), (46, 6112860), (51, 5513560), (52, 5407530), (60, 4686526), (65, 4326024), (68, 4135170), (69, 4075240), (78, 3605020), (85, 3308136), (92, 3056430), (102, 2756780), (104, 2703765), (115, 2445144), (120, 2343263), (130, 2163012), (136, 2067585), (138, 2037620), (156, 1802510), (170, 1654068), (184, 1528215), (195, 1442008), (204, 1378390), (221, 1272360), (230, 1222572), (255, 1102712), (260, 1081506), (276, 1018810), (299, 940440), (312, 901255), (340, 827034), (345, 815048), (390, 721004), (391, 719160), (408, 689195), (442, 636180), (460, 611286), (461, 609960), (510, 551356), (520, 540753), (552, 509405), (598, 470220), (663, 424120), (680, 413517), (690, 407524), (780, 360502), (782, 359580), (884, 318090), (897, 313480), (920, 305643), (922, 304980), (1020, 275678), (1105, 254472), (1173, 239720), (1196, 235110), (1326, 212060), (1380, 203762), (1383, 203320), (1495, 188088), (1560, 180251), (1564, 179790), (1768, 159045), (1794, 156740), (1844, 152490), (1955, 143832), (2040, 137839), (2210, 127236), (2305, 121992), (2346, 119860), (2392, 117555), (2652, 106030), (2760, 101881), (2766, 101660), (2990, 94044), (3128, 89895), (3315, 84824), (3588, 78370), (3688, 76245), (3910, 71916), (4420, 63618), (4485, 62696), (4610, 60996), (4692, 59930), (5083, 55320), (5304, 53015), (5532, 50830), (5865, 47944), (5980, 47022), (5993, 46920), (6630, 42412), (6915, 40664), (7176, 39185), (7820, 35958), (7837, 35880), (8840, 31809), (8970, 31348), (9220, 30498), (9384, 29965), (10166, 27660), (10603, 26520), (11064, 25415), (11730, 23972), (11960, 23511), (11986, 23460), (13260, 21206), (13830, 20332), (15249, 18440), (15640, 17979), (15674, 17940)]