20107750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 22349210

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 115, 125, 130, 230, 250, 269, 299, 325, 538, 575, 598, 650, 1150, 1345, 1495, 1625, 2690, 2875, 2990, 3250, 3497, 5750, 6187, 6725, 6994, 7475, 12374, 13450, 14950, 17485, 30935, 33625, 34970, 37375, 61870, 67250, 74750, 80431, 87425, 154675, 160862, 174850, 309350, 402155, 437125, 773375, 804310, 874250, 1546750, 2010775, 4021550, 10053875, 20107750]

約数ペア:

[(1, 20107750), (2, 10053875), (5, 4021550), (10, 2010775), (13, 1546750), (23, 874250), (25, 804310), (26, 773375), (46, 437125), (50, 402155), (65, 309350), (115, 174850), (125, 160862), (130, 154675), (230, 87425), (250, 80431), (269, 74750), (299, 67250), (325, 61870), (538, 37375), (575, 34970), (598, 33625), (650, 30935), (1150, 17485), (1345, 14950), (1495, 13450), (1625, 12374), (2690, 7475), (2875, 6994), (2990, 6725), (3250, 6187), (3497, 5750)]