353945020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{123757}}^1$

素因数の和:123790

約数の個数: 48

約数和(自身を含む): 873236448

約数和(自身を除く): 519291428

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 123757, 247514, 495028, 618785, 1237570, 1361327, 1608841, 2475140, 2722654, 3217682, 5445308, 6435364, 6806635, 8044205, 13613270, 16088410, 17697251, 27226540, 32176820, 35394502, 70789004, 88486255, 176972510, 353945020]

約数ペア:

[(1, 353945020), (2, 176972510), (4, 88486255), (5, 70789004), (10, 35394502), (11, 32176820), (13, 27226540), (20, 17697251), (22, 16088410), (26, 13613270), (44, 8044205), (52, 6806635), (55, 6435364), (65, 5445308), (110, 3217682), (130, 2722654), (143, 2475140), (220, 1608841), (260, 1361327), (286, 1237570), (572, 618785), (715, 495028), (1430, 247514), (2860, 123757)]