20179614880

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^2\times {\mathrm{238417}}^1$

素因数の和:238478

約数の個数: 72

約数和(自身を含む): 49837468212

約数和(自身を除く): 29657853332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 529, 736, 920, 1058, 1840, 2116, 2645, 3680, 4232, 5290, 8464, 10580, 16928, 21160, 42320, 84640, 238417, 476834, 953668, 1192085, 1907336, 2384170, 3814672, 4768340, 5483591, 7629344, 9536680, 10967182, 19073360, 21934364, 27417955, 38146720, 43868728, 54835910, 87737456, 109671820, 126122593, 175474912, 219343640, 252245186, 438687280, 504490372, 630612965, 877374560, 1008980744, 1261225930, 2017961488, 2522451860, 4035922976, 5044903720, 10089807440, 20179614880]

約数ペア:

[(1, 20179614880), (2, 10089807440), (4, 5044903720), (5, 4035922976), (8, 2522451860), (10, 2017961488), (16, 1261225930), (20, 1008980744), (23, 877374560), (32, 630612965), (40, 504490372), (46, 438687280), (80, 252245186), (92, 219343640), (115, 175474912), (160, 126122593), (184, 109671820), (230, 87737456), (368, 54835910), (460, 43868728), (529, 38146720), (736, 27417955), (920, 21934364), (1058, 19073360), (1840, 10967182), (2116, 9536680), (2645, 7629344), (3680, 5483591), (4232, 4768340), (5290, 3814672), (8464, 2384170), (10580, 1907336), (16928, 1192085), (21160, 953668), (42320, 476834), (84640, 238417)]