78308440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1877}}^1$

素因数の和:2044

約数の個数: 64

約数和(自身を含む): 202824000

約数和(自身を除く): 124515560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 1877, 2086, 2980, 3754, 4172, 5215, 5960, 7508, 8344, 9385, 10430, 13139, 15016, 18770, 20860, 26278, 37540, 41720, 52556, 65695, 75080, 105112, 131390, 262780, 279673, 525560, 559346, 1118692, 1398365, 1957711, 2237384, 2796730, 3915422, 5593460, 7830844, 9788555, 11186920, 15661688, 19577110, 39154220, 78308440]

約数ペア:

[(1, 78308440), (2, 39154220), (4, 19577110), (5, 15661688), (7, 11186920), (8, 9788555), (10, 7830844), (14, 5593460), (20, 3915422), (28, 2796730), (35, 2237384), (40, 1957711), (56, 1398365), (70, 1118692), (140, 559346), (149, 525560), (280, 279673), (298, 262780), (596, 131390), (745, 105112), (1043, 75080), (1192, 65695), (1490, 52556), (1877, 41720), (2086, 37540), (2980, 26278), (3754, 20860), (4172, 18770), (5215, 15016), (5960, 13139), (7508, 10430), (8344, 9385)]