1654640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 80

約数和(自身を含む): 4353888

約数和(自身を除く): 2699248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 43, 52, 65, 74, 80, 86, 104, 130, 148, 172, 185, 208, 215, 260, 296, 344, 370, 430, 481, 520, 559, 592, 688, 740, 860, 962, 1040, 1118, 1480, 1591, 1720, 1924, 2236, 2405, 2795, 2960, 3182, 3440, 3848, 4472, 4810, 5590, 6364, 7696, 7955, 8944, 9620, 11180, 12728, 15910, 19240, 20683, 22360, 25456, 31820, 38480, 41366, 44720, 63640, 82732, 103415, 127280, 165464, 206830, 330928, 413660, 827320, 1654640]

約数ペア:

[(1, 1654640), (2, 827320), (4, 413660), (5, 330928), (8, 206830), (10, 165464), (13, 127280), (16, 103415), (20, 82732), (26, 63640), (37, 44720), (40, 41366), (43, 38480), (52, 31820), (65, 25456), (74, 22360), (80, 20683), (86, 19240), (104, 15910), (130, 12728), (148, 11180), (172, 9620), (185, 8944), (208, 7955), (215, 7696), (260, 6364), (296, 5590), (344, 4810), (370, 4472), (430, 3848), (481, 3440), (520, 3182), (559, 2960), (592, 2795), (688, 2405), (740, 2236), (860, 1924), (962, 1720), (1040, 1591), (1118, 1480)]