128973840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2141}}^1$

素因数の和:2408

約数の個数: 80

約数和(自身を含む): 401599296

約数和(自身を除く): 272625456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 251, 502, 753, 1004, 1255, 1506, 2008, 2141, 2510, 3012, 3765, 4016, 4282, 5020, 6024, 6423, 7530, 8564, 10040, 10705, 12048, 12846, 15060, 17128, 20080, 21410, 25692, 30120, 32115, 34256, 42820, 51384, 60240, 64230, 85640, 102768, 128460, 171280, 256920, 513840, 537391, 1074782, 1612173, 2149564, 2686955, 3224346, 4299128, 5373910, 6448692, 8060865, 8598256, 10747820, 12897384, 16121730, 21495640, 25794768, 32243460, 42991280, 64486920, 128973840]

約数ペア:

[(1, 128973840), (2, 64486920), (3, 42991280), (4, 32243460), (5, 25794768), (6, 21495640), (8, 16121730), (10, 12897384), (12, 10747820), (15, 8598256), (16, 8060865), (20, 6448692), (24, 5373910), (30, 4299128), (40, 3224346), (48, 2686955), (60, 2149564), (80, 1612173), (120, 1074782), (240, 537391), (251, 513840), (502, 256920), (753, 171280), (1004, 128460), (1255, 102768), (1506, 85640), (2008, 64230), (2141, 60240), (2510, 51384), (3012, 42820), (3765, 34256), (4016, 32115), (4282, 30120), (5020, 25692), (6024, 21410), (6423, 20080), (7530, 17128), (8564, 15060), (10040, 12846), (10705, 12048)]