720902511

素因数分解:

$3^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3049}}^1$

素因数の和:3210

約数の個数: 48

約数和(自身を含む): 1243424000

約数和(自身を除く): 522521489

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 243, 417, 567, 973, 1251, 1701, 2919, 3049, 3753, 8757, 9147, 11259, 21343, 26271, 27441, 33777, 64029, 78813, 82323, 192087, 236439, 246969, 423811, 576261, 740907, 1271433, 1728783, 2966677, 3814299, 5186349, 8900031, 11442897, 26700093, 34328691, 80100279, 102986073, 240300837, 720902511]

約数ペア:

[(1, 720902511), (3, 240300837), (7, 102986073), (9, 80100279), (21, 34328691), (27, 26700093), (63, 11442897), (81, 8900031), (139, 5186349), (189, 3814299), (243, 2966677), (417, 1728783), (567, 1271433), (973, 740907), (1251, 576261), (1701, 423811), (2919, 246969), (3049, 236439), (3753, 192087), (8757, 82323), (9147, 78813), (11259, 64029), (21343, 33777), (26271, 27441)]