77874560

素因数分解:

$2^7\times 5^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:739

約数の個数: 64

約数和(自身を含む): 187272000

約数和(自身を除く): 109397440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 271, 320, 449, 542, 640, 898, 1084, 1355, 1796, 2168, 2245, 2710, 3592, 4336, 4490, 5420, 7184, 8672, 8980, 10840, 14368, 17344, 17960, 21680, 28736, 34688, 35920, 43360, 57472, 71840, 86720, 121679, 143680, 173440, 243358, 287360, 486716, 608395, 973432, 1216790, 1946864, 2433580, 3893728, 4867160, 7787456, 9734320, 15574912, 19468640, 38937280, 77874560]

約数ペア:

[(1, 77874560), (2, 38937280), (4, 19468640), (5, 15574912), (8, 9734320), (10, 7787456), (16, 4867160), (20, 3893728), (32, 2433580), (40, 1946864), (64, 1216790), (80, 973432), (128, 608395), (160, 486716), (271, 287360), (320, 243358), (449, 173440), (542, 143680), (640, 121679), (898, 86720), (1084, 71840), (1355, 57472), (1796, 43360), (2168, 35920), (2245, 34688), (2710, 28736), (3592, 21680), (4336, 17960), (4490, 17344), (5420, 14368), (7184, 10840), (8672, 8980)]