2078459720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{2767}}^1$

素因数の和:3078

約数の個数: 64

約数和(自身を含む): 4753209600

約数和(自身を除く): 2674749880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 211, 356, 422, 445, 712, 844, 890, 1055, 1688, 1780, 2110, 2767, 3560, 4220, 5534, 8440, 11068, 13835, 18779, 22136, 27670, 37558, 55340, 75116, 93895, 110680, 150232, 187790, 246263, 375580, 492526, 583837, 751160, 985052, 1167674, 1231315, 1970104, 2335348, 2462630, 2919185, 4670696, 4925260, 5838370, 9850520, 11676740, 23353480, 51961493, 103922986, 207845972, 259807465, 415691944, 519614930, 1039229860, 2078459720]

約数ペア:

[(1, 2078459720), (2, 1039229860), (4, 519614930), (5, 415691944), (8, 259807465), (10, 207845972), (20, 103922986), (40, 51961493), (89, 23353480), (178, 11676740), (211, 9850520), (356, 5838370), (422, 4925260), (445, 4670696), (712, 2919185), (844, 2462630), (890, 2335348), (1055, 1970104), (1688, 1231315), (1780, 1167674), (2110, 985052), (2767, 751160), (3560, 583837), (4220, 492526), (5534, 375580), (8440, 246263), (11068, 187790), (13835, 150232), (18779, 110680), (22136, 93895), (27670, 75116), (37558, 55340)]