205477580

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{389}}^1$

素因数の和:437

約数の個数: 120

約数和(自身を含む): 550564560

約数和(自身を除く): 345086980

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 343, 385, 389, 490, 539, 686, 770, 778, 980, 1078, 1372, 1540, 1556, 1715, 1945, 2156, 2401, 2695, 2723, 3430, 3773, 3890, 4279, 4802, 5390, 5446, 6860, 7546, 7780, 8558, 9604, 10780, 10892, 12005, 13615, 15092, 17116, 18865, 19061, 21395, 24010, 26411, 27230, 29953, 37730, 38122, 42790, 48020, 52822, 54460, 59906, 75460, 76244, 85580, 95305, 105644, 119812, 132055, 133427, 149765, 190610, 209671, 264110, 266854, 299530, 381220, 419342, 528220, 533708, 599060, 667135, 838684, 933989, 1048355, 1334270, 1467697, 1867978, 2096710, 2668540, 2935394, 3735956, 4193420, 4669945, 5870788, 7338485, 9339890, 10273879, 14676970, 18679780, 20547758, 29353940, 41095516, 51369395, 102738790, 205477580]

約数ペア:

[(1, 205477580), (2, 102738790), (4, 51369395), (5, 41095516), (7, 29353940), (10, 20547758), (11, 18679780), (14, 14676970), (20, 10273879), (22, 9339890), (28, 7338485), (35, 5870788), (44, 4669945), (49, 4193420), (55, 3735956), (70, 2935394), (77, 2668540), (98, 2096710), (110, 1867978), (140, 1467697), (154, 1334270), (196, 1048355), (220, 933989), (245, 838684), (308, 667135), (343, 599060), (385, 533708), (389, 528220), (490, 419342), (539, 381220), (686, 299530), (770, 266854), (778, 264110), (980, 209671), (1078, 190610), (1372, 149765), (1540, 133427), (1556, 132055), (1715, 119812), (1945, 105644), (2156, 95305), (2401, 85580), (2695, 76244), (2723, 75460), (3430, 59906), (3773, 54460), (3890, 52822), (4279, 48020), (4802, 42790), (5390, 38122), (5446, 37730), (6860, 29953), (7546, 27230), (7780, 26411), (8558, 24010), (9604, 21395), (10780, 19061), (10892, 18865), (12005, 17116), (13615, 15092)]