20623640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:836

約数の個数: 64

約数和(自身を含む): 50155200

約数和(自身を除く): 29531560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 92, 115, 116, 145, 184, 230, 232, 290, 460, 580, 667, 773, 920, 1160, 1334, 1546, 2668, 3092, 3335, 3865, 5336, 6184, 6670, 7730, 13340, 15460, 17779, 22417, 26680, 30920, 35558, 44834, 71116, 88895, 89668, 112085, 142232, 177790, 179336, 224170, 355580, 448340, 515591, 711160, 896680, 1031182, 2062364, 2577955, 4124728, 5155910, 10311820, 20623640]

約数ペア:

[(1, 20623640), (2, 10311820), (4, 5155910), (5, 4124728), (8, 2577955), (10, 2062364), (20, 1031182), (23, 896680), (29, 711160), (40, 515591), (46, 448340), (58, 355580), (92, 224170), (115, 179336), (116, 177790), (145, 142232), (184, 112085), (230, 89668), (232, 88895), (290, 71116), (460, 44834), (580, 35558), (667, 30920), (773, 26680), (920, 22417), (1160, 17779), (1334, 15460), (1546, 13340), (2668, 7730), (3092, 6670), (3335, 6184), (3865, 5336)]