138571420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 336063168

約数和(自身を除く): 197491748

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 107, 130, 170, 214, 221, 260, 293, 340, 428, 442, 535, 586, 884, 1070, 1105, 1172, 1391, 1465, 1819, 2140, 2210, 2782, 2930, 3638, 3809, 4420, 4981, 5564, 5860, 6955, 7276, 7618, 9095, 9962, 13910, 15236, 18190, 19045, 19924, 23647, 24905, 27820, 31351, 36380, 38090, 47294, 49810, 62702, 64753, 76180, 94588, 99620, 118235, 125404, 129506, 156755, 236470, 259012, 313510, 323765, 407563, 472940, 532967, 627020, 647530, 815126, 1065934, 1295060, 1630252, 2037815, 2131868, 2664835, 4075630, 5329670, 6928571, 8151260, 10659340, 13857142, 27714284, 34642855, 69285710, 138571420]

約数ペア:

[(1, 138571420), (2, 69285710), (4, 34642855), (5, 27714284), (10, 13857142), (13, 10659340), (17, 8151260), (20, 6928571), (26, 5329670), (34, 4075630), (52, 2664835), (65, 2131868), (68, 2037815), (85, 1630252), (107, 1295060), (130, 1065934), (170, 815126), (214, 647530), (221, 627020), (260, 532967), (293, 472940), (340, 407563), (428, 323765), (442, 313510), (535, 259012), (586, 236470), (884, 156755), (1070, 129506), (1105, 125404), (1172, 118235), (1391, 99620), (1465, 94588), (1819, 76180), (2140, 64753), (2210, 62702), (2782, 49810), (2930, 47294), (3638, 38090), (3809, 36380), (4420, 31351), (4981, 27820), (5564, 24905), (5860, 23647), (6955, 19924), (7276, 19045), (7618, 18190), (9095, 15236), (9962, 13910)]