81683680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:428

約数の個数: 96

約数和(自身を含む): 209944224

約数和(自身を除く): 128260544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 173, 208, 227, 260, 346, 416, 454, 520, 692, 865, 908, 1040, 1135, 1384, 1730, 1816, 2080, 2249, 2270, 2768, 2951, 3460, 3632, 4498, 4540, 5536, 5902, 6920, 7264, 8996, 9080, 11245, 11804, 13840, 14755, 17992, 18160, 22490, 23608, 27680, 29510, 35984, 36320, 39271, 44980, 47216, 59020, 71968, 78542, 89960, 94432, 118040, 157084, 179920, 196355, 236080, 314168, 359840, 392710, 472160, 510523, 628336, 785420, 1021046, 1256672, 1570840, 2042092, 2552615, 3141680, 4084184, 5105230, 6283360, 8168368, 10210460, 16336736, 20420920, 40841840, 81683680]

約数ペア:

[(1, 81683680), (2, 40841840), (4, 20420920), (5, 16336736), (8, 10210460), (10, 8168368), (13, 6283360), (16, 5105230), (20, 4084184), (26, 3141680), (32, 2552615), (40, 2042092), (52, 1570840), (65, 1256672), (80, 1021046), (104, 785420), (130, 628336), (160, 510523), (173, 472160), (208, 392710), (227, 359840), (260, 314168), (346, 236080), (416, 196355), (454, 179920), (520, 157084), (692, 118040), (865, 94432), (908, 89960), (1040, 78542), (1135, 71968), (1384, 59020), (1730, 47216), (1816, 44980), (2080, 39271), (2249, 36320), (2270, 35984), (2768, 29510), (2951, 27680), (3460, 23608), (3632, 22490), (4498, 18160), (4540, 17992), (5536, 14755), (5902, 13840), (6920, 11804), (7264, 11245), (8996, 9080)]