77972440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:753

約数の個数: 128

約数和(自身を含む): 223211520

約数和(自身を除く): 145239080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 691, 728, 806, 868, 910, 1085, 1240, 1382, 1612, 1736, 1820, 2015, 2170, 2764, 2821, 3224, 3455, 3640, 4030, 4340, 4837, 5528, 5642, 6910, 8060, 8680, 8983, 9674, 11284, 13820, 14105, 16120, 17966, 19348, 21421, 22568, 24185, 27640, 28210, 35932, 38696, 42842, 44915, 48370, 56420, 62881, 71864, 85684, 89830, 96740, 107105, 112840, 125762, 149947, 171368, 179660, 193480, 214210, 251524, 278473, 299894, 314405, 359320, 428420, 503048, 556946, 599788, 628810, 749735, 856840, 1113892, 1199576, 1257620, 1392365, 1499470, 1949311, 2227784, 2515240, 2784730, 2998940, 3898622, 5569460, 5997880, 7797244, 9746555, 11138920, 15594488, 19493110, 38986220, 77972440]

約数ペア:

[(1, 77972440), (2, 38986220), (4, 19493110), (5, 15594488), (7, 11138920), (8, 9746555), (10, 7797244), (13, 5997880), (14, 5569460), (20, 3898622), (26, 2998940), (28, 2784730), (31, 2515240), (35, 2227784), (40, 1949311), (52, 1499470), (56, 1392365), (62, 1257620), (65, 1199576), (70, 1113892), (91, 856840), (104, 749735), (124, 628810), (130, 599788), (140, 556946), (155, 503048), (182, 428420), (217, 359320), (248, 314405), (260, 299894), (280, 278473), (310, 251524), (364, 214210), (403, 193480), (434, 179660), (455, 171368), (520, 149947), (620, 125762), (691, 112840), (728, 107105), (806, 96740), (868, 89830), (910, 85684), (1085, 71864), (1240, 62881), (1382, 56420), (1612, 48370), (1736, 44915), (1820, 42842), (2015, 38696), (2170, 35932), (2764, 28210), (2821, 27640), (3224, 24185), (3455, 22568), (3640, 21421), (4030, 19348), (4340, 17966), (4837, 16120), (5528, 14105), (5642, 13820), (6910, 11284), (8060, 9674), (8680, 8983)]