179487620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{11317}}^1$

素因数の和:11400

約数の個数: 48

約数和(自身を含む): 412609008

約数和(自身を除く): 233121388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 11317, 15860, 22634, 45268, 56585, 113170, 147121, 226340, 294242, 588484, 690337, 735605, 1380674, 1471210, 2761348, 2942420, 3451685, 6903370, 8974381, 13806740, 17948762, 35897524, 44871905, 89743810, 179487620]

約数ペア:

[(1, 179487620), (2, 89743810), (4, 44871905), (5, 35897524), (10, 17948762), (13, 13806740), (20, 8974381), (26, 6903370), (52, 3451685), (61, 2942420), (65, 2761348), (122, 1471210), (130, 1380674), (244, 735605), (260, 690337), (305, 588484), (610, 294242), (793, 226340), (1220, 147121), (1586, 113170), (3172, 56585), (3965, 45268), (7930, 22634), (11317, 15860)]