21630120

素因数分解:

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

素因数の和:515

約数の個数: 128

約数和(自身を含む): 71850240

約数和(自身を除く): 50220120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 255, 276, 340, 345, 391, 408, 460, 461, 510, 552, 680, 690, 782, 920, 922, 1020, 1173, 1380, 1383, 1564, 1844, 1955, 2040, 2305, 2346, 2760, 2766, 3128, 3688, 3910, 4610, 4692, 5532, 5865, 6915, 7820, 7837, 9220, 9384, 10603, 11064, 11730, 13830, 15640, 15674, 18440, 21206, 23460, 23511, 27660, 31348, 31809, 39185, 42412, 46920, 47022, 53015, 55320, 62696, 63618, 78370, 84824, 94044, 106030, 117555, 127236, 156740, 159045, 180251, 188088, 212060, 235110, 254472, 313480, 318090, 360502, 424120, 470220, 540753, 636180, 721004, 901255, 940440, 1081506, 1272360, 1442008, 1802510, 2163012, 2703765, 3605020, 4326024, 5407530, 7210040, 10815060, 21630120]

約数ペア:

[(1, 21630120), (2, 10815060), (3, 7210040), (4, 5407530), (5, 4326024), (6, 3605020), (8, 2703765), (10, 2163012), (12, 1802510), (15, 1442008), (17, 1272360), (20, 1081506), (23, 940440), (24, 901255), (30, 721004), (34, 636180), (40, 540753), (46, 470220), (51, 424120), (60, 360502), (68, 318090), (69, 313480), (85, 254472), (92, 235110), (102, 212060), (115, 188088), (120, 180251), (136, 159045), (138, 156740), (170, 127236), (184, 117555), (204, 106030), (230, 94044), (255, 84824), (276, 78370), (340, 63618), (345, 62696), (391, 55320), (408, 53015), (460, 47022), (461, 46920), (510, 42412), (552, 39185), (680, 31809), (690, 31348), (782, 27660), (920, 23511), (922, 23460), (1020, 21206), (1173, 18440), (1380, 15674), (1383, 15640), (1564, 13830), (1844, 11730), (1955, 11064), (2040, 10603), (2305, 9384), (2346, 9220), (2760, 7837), (2766, 7820), (3128, 6915), (3688, 5865), (3910, 5532), (4610, 4692)]