28427100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 91431648

約数和(自身を除く): 63004548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 37, 39, 50, 52, 60, 65, 74, 75, 78, 100, 111, 130, 148, 150, 156, 185, 195, 197, 222, 260, 300, 325, 370, 390, 394, 444, 481, 555, 591, 650, 740, 780, 788, 925, 962, 975, 985, 1110, 1182, 1300, 1443, 1850, 1924, 1950, 1970, 2220, 2364, 2405, 2561, 2775, 2886, 2955, 3700, 3900, 3940, 4810, 4925, 5122, 5550, 5772, 5910, 7215, 7289, 7683, 9620, 9850, 10244, 11100, 11820, 12025, 12805, 14430, 14578, 14775, 15366, 19700, 21867, 24050, 25610, 28860, 29156, 29550, 30732, 36075, 36445, 38415, 43734, 48100, 51220, 59100, 64025, 72150, 72890, 76830, 87468, 94757, 109335, 128050, 144300, 145780, 153660, 182225, 189514, 192075, 218670, 256100, 284271, 364450, 379028, 384150, 437340, 473785, 546675, 568542, 728900, 768300, 947570, 1093350, 1137084, 1421355, 1895140, 2186700, 2368925, 2842710, 4737850, 5685420, 7106775, 9475700, 14213550, 28427100]

約数ペア:

[(1, 28427100), (2, 14213550), (3, 9475700), (4, 7106775), (5, 5685420), (6, 4737850), (10, 2842710), (12, 2368925), (13, 2186700), (15, 1895140), (20, 1421355), (25, 1137084), (26, 1093350), (30, 947570), (37, 768300), (39, 728900), (50, 568542), (52, 546675), (60, 473785), (65, 437340), (74, 384150), (75, 379028), (78, 364450), (100, 284271), (111, 256100), (130, 218670), (148, 192075), (150, 189514), (156, 182225), (185, 153660), (195, 145780), (197, 144300), (222, 128050), (260, 109335), (300, 94757), (325, 87468), (370, 76830), (390, 72890), (394, 72150), (444, 64025), (481, 59100), (555, 51220), (591, 48100), (650, 43734), (740, 38415), (780, 36445), (788, 36075), (925, 30732), (962, 29550), (975, 29156), (985, 28860), (1110, 25610), (1182, 24050), (1300, 21867), (1443, 19700), (1850, 15366), (1924, 14775), (1950, 14578), (1970, 14430), (2220, 12805), (2364, 12025), (2405, 11820), (2561, 11100), (2775, 10244), (2886, 9850), (2955, 9620), (3700, 7683), (3900, 7289), (3940, 7215), (4810, 5910), (4925, 5772), (5122, 5550)]