220823980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{29287}}^1$

素因数の和:29338

約数の個数: 48

約数和(自身を含む): 516640320

約数和(自身を除く): 295816340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 29287, 58574, 117148, 146435, 292870, 380731, 585740, 761462, 849323, 1522924, 1698646, 1903655, 3397292, 3807310, 4246615, 7614620, 8493230, 11041199, 16986460, 22082398, 44164796, 55205995, 110411990, 220823980]

約数ペア:

[(1, 220823980), (2, 110411990), (4, 55205995), (5, 44164796), (10, 22082398), (13, 16986460), (20, 11041199), (26, 8493230), (29, 7614620), (52, 4246615), (58, 3807310), (65, 3397292), (116, 1903655), (130, 1698646), (145, 1522924), (260, 849323), (290, 761462), (377, 585740), (580, 380731), (754, 292870), (1508, 146435), (1885, 117148), (3770, 58574), (7540, 29287)]