51921740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{691}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 124917072

約数和(自身を除く): 72995332

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 289, 340, 442, 578, 691, 884, 1105, 1156, 1382, 1445, 2210, 2764, 2890, 3455, 3757, 4420, 5780, 6910, 7514, 8983, 11747, 13820, 15028, 17966, 18785, 23494, 35932, 37570, 44915, 46988, 58735, 75140, 89830, 117470, 152711, 179660, 199699, 234940, 305422, 399398, 610844, 763555, 798796, 998495, 1527110, 1996990, 2596087, 3054220, 3993980, 5192174, 10384348, 12980435, 25960870, 51921740]

約数ペア:

[(1, 51921740), (2, 25960870), (4, 12980435), (5, 10384348), (10, 5192174), (13, 3993980), (17, 3054220), (20, 2596087), (26, 1996990), (34, 1527110), (52, 998495), (65, 798796), (68, 763555), (85, 610844), (130, 399398), (170, 305422), (221, 234940), (260, 199699), (289, 179660), (340, 152711), (442, 117470), (578, 89830), (691, 75140), (884, 58735), (1105, 46988), (1156, 44915), (1382, 37570), (1445, 35932), (2210, 23494), (2764, 18785), (2890, 17966), (3455, 15028), (3757, 13820), (4420, 11747), (5780, 8983), (6910, 7514)]