128977560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:498

約数の個数: 192

約数和(自身を含む): 450290880

約数和(自身を除く): 321313320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 37, 40, 45, 46, 60, 69, 72, 74, 90, 92, 111, 115, 120, 138, 148, 180, 184, 185, 207, 222, 230, 276, 296, 333, 345, 360, 370, 414, 421, 444, 460, 552, 555, 666, 690, 740, 828, 842, 851, 888, 920, 1035, 1110, 1263, 1332, 1380, 1480, 1656, 1665, 1684, 1702, 2070, 2105, 2220, 2526, 2553, 2664, 2760, 3330, 3368, 3404, 3789, 4140, 4210, 4255, 4440, 5052, 5106, 6315, 6660, 6808, 7578, 7659, 8280, 8420, 8510, 9683, 10104, 10212, 12630, 12765, 13320, 15156, 15318, 15577, 16840, 17020, 18945, 19366, 20424, 25260, 25530, 29049, 30312, 30636, 31154, 34040, 37890, 38295, 38732, 46731, 48415, 50520, 51060, 58098, 61272, 62308, 75780, 76590, 77464, 77885, 87147, 93462, 96830, 102120, 116196, 124616, 140193, 145245, 151560, 153180, 155770, 174294, 186924, 193660, 232392, 233655, 280386, 290490, 306360, 311540, 348588, 358271, 373848, 387320, 435735, 467310, 560772, 580980, 623080, 697176, 700965, 716542, 871470, 934620, 1074813, 1121544, 1161960, 1401930, 1433084, 1742940, 1791355, 1869240, 2149626, 2803860, 2866168, 3224439, 3485880, 3582710, 4299252, 5374065, 5607720, 6448878, 7165420, 8598504, 10748130, 12897756, 14330840, 16122195, 21496260, 25795512, 32244390, 42992520, 64488780, 128977560]

約数ペア:

[(1, 128977560), (2, 64488780), (3, 42992520), (4, 32244390), (5, 25795512), (6, 21496260), (8, 16122195), (9, 14330840), (10, 12897756), (12, 10748130), (15, 8598504), (18, 7165420), (20, 6448878), (23, 5607720), (24, 5374065), (30, 4299252), (36, 3582710), (37, 3485880), (40, 3224439), (45, 2866168), (46, 2803860), (60, 2149626), (69, 1869240), (72, 1791355), (74, 1742940), (90, 1433084), (92, 1401930), (111, 1161960), (115, 1121544), (120, 1074813), (138, 934620), (148, 871470), (180, 716542), (184, 700965), (185, 697176), (207, 623080), (222, 580980), (230, 560772), (276, 467310), (296, 435735), (333, 387320), (345, 373848), (360, 358271), (370, 348588), (414, 311540), (421, 306360), (444, 290490), (460, 280386), (552, 233655), (555, 232392), (666, 193660), (690, 186924), (740, 174294), (828, 155770), (842, 153180), (851, 151560), (888, 145245), (920, 140193), (1035, 124616), (1110, 116196), (1263, 102120), (1332, 96830), (1380, 93462), (1480, 87147), (1656, 77885), (1665, 77464), (1684, 76590), (1702, 75780), (2070, 62308), (2105, 61272), (2220, 58098), (2526, 51060), (2553, 50520), (2664, 48415), (2760, 46731), (3330, 38732), (3368, 38295), (3404, 37890), (3789, 34040), (4140, 31154), (4210, 30636), (4255, 30312), (4440, 29049), (5052, 25530), (5106, 25260), (6315, 20424), (6660, 19366), (6808, 18945), (7578, 17020), (7659, 16840), (8280, 15577), (8420, 15318), (8510, 15156), (9683, 13320), (10104, 12765), (10212, 12630)]