28775760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 160

約数和(自身を含む): 100493568

約数和(自身を除く): 71717808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 401, 460, 520, 552, 598, 624, 690, 780, 802, 897, 920, 1040, 1104, 1196, 1203, 1380, 1495, 1560, 1604, 1794, 1840, 2005, 2392, 2406, 2760, 2990, 3120, 3208, 3588, 4010, 4485, 4784, 4812, 5213, 5520, 5980, 6015, 6416, 7176, 8020, 8970, 9223, 9624, 10426, 11960, 12030, 14352, 15639, 16040, 17940, 18446, 19248, 20852, 23920, 24060, 26065, 27669, 31278, 32080, 35880, 36892, 41704, 46115, 48120, 52130, 55338, 62556, 71760, 73784, 78195, 83408, 92230, 96240, 104260, 110676, 119899, 125112, 138345, 147568, 156390, 184460, 208520, 221352, 239798, 250224, 276690, 312780, 359697, 368920, 417040, 442704, 479596, 553380, 599495, 625560, 719394, 737840, 959192, 1106760, 1198990, 1251120, 1438788, 1798485, 1918384, 2213520, 2397980, 2877576, 3596970, 4795960, 5755152, 7193940, 9591920, 14387880, 28775760]

約数ペア:

[(1, 28775760), (2, 14387880), (3, 9591920), (4, 7193940), (5, 5755152), (6, 4795960), (8, 3596970), (10, 2877576), (12, 2397980), (13, 2213520), (15, 1918384), (16, 1798485), (20, 1438788), (23, 1251120), (24, 1198990), (26, 1106760), (30, 959192), (39, 737840), (40, 719394), (46, 625560), (48, 599495), (52, 553380), (60, 479596), (65, 442704), (69, 417040), (78, 368920), (80, 359697), (92, 312780), (104, 276690), (115, 250224), (120, 239798), (130, 221352), (138, 208520), (156, 184460), (184, 156390), (195, 147568), (208, 138345), (230, 125112), (240, 119899), (260, 110676), (276, 104260), (299, 96240), (312, 92230), (345, 83408), (368, 78195), (390, 73784), (401, 71760), (460, 62556), (520, 55338), (552, 52130), (598, 48120), (624, 46115), (690, 41704), (780, 36892), (802, 35880), (897, 32080), (920, 31278), (1040, 27669), (1104, 26065), (1196, 24060), (1203, 23920), (1380, 20852), (1495, 19248), (1560, 18446), (1604, 17940), (1794, 16040), (1840, 15639), (2005, 14352), (2392, 12030), (2406, 11960), (2760, 10426), (2990, 9624), (3120, 9223), (3208, 8970), (3588, 8020), (4010, 7176), (4485, 6416), (4784, 6015), (4812, 5980), (5213, 5520)]