20165304675

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{239849}}^1$

素因数の和:239940

約数の個数: 48

約数和(自身を含む): 35689680000

約数和(自身を除く): 15524375325

約数列:

[1, 3, 5, 15, 19, 25, 57, 59, 75, 95, 177, 285, 295, 475, 885, 1121, 1425, 1475, 3363, 4425, 5605, 16815, 28025, 84075, 239849, 719547, 1199245, 3597735, 4557131, 5996225, 13671393, 14151091, 17988675, 22785655, 42453273, 68356965, 70755455, 113928275, 212266365, 268870729, 341784825, 353777275, 806612187, 1061331825, 1344353645, 4033060935, 6721768225, 20165304675]

約数ペア:

[(1, 20165304675), (3, 6721768225), (5, 4033060935), (15, 1344353645), (19, 1061331825), (25, 806612187), (57, 353777275), (59, 341784825), (75, 268870729), (95, 212266365), (177, 113928275), (285, 70755455), (295, 68356965), (475, 42453273), (885, 22785655), (1121, 17988675), (1425, 14151091), (1475, 13671393), (3363, 5996225), (4425, 4557131), (5605, 3597735), (16815, 1199245), (28025, 719547), (84075, 239849)]