207974960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:606

約数の個数: 80

約数和(自身を含む): 499655520

約数和(自身を除く): 291680560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 163, 164, 205, 326, 328, 389, 410, 652, 656, 778, 815, 820, 1304, 1556, 1630, 1640, 1945, 2608, 3112, 3260, 3280, 3890, 6224, 6520, 6683, 7780, 13040, 13366, 15560, 15949, 26732, 31120, 31898, 33415, 53464, 63407, 63796, 66830, 79745, 106928, 126814, 127592, 133660, 159490, 253628, 255184, 267320, 317035, 318980, 507256, 534640, 634070, 637960, 1014512, 1268140, 1275920, 2536280, 2599687, 5072560, 5199374, 10398748, 12998435, 20797496, 25996870, 41594992, 51993740, 103987480, 207974960]

約数ペア:

[(1, 207974960), (2, 103987480), (4, 51993740), (5, 41594992), (8, 25996870), (10, 20797496), (16, 12998435), (20, 10398748), (40, 5199374), (41, 5072560), (80, 2599687), (82, 2536280), (163, 1275920), (164, 1268140), (205, 1014512), (326, 637960), (328, 634070), (389, 534640), (410, 507256), (652, 318980), (656, 317035), (778, 267320), (815, 255184), (820, 253628), (1304, 159490), (1556, 133660), (1630, 127592), (1640, 126814), (1945, 106928), (2608, 79745), (3112, 66830), (3260, 63796), (3280, 63407), (3890, 53464), (6224, 33415), (6520, 31898), (6683, 31120), (7780, 26732), (13040, 15949), (13366, 15560)]