651040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 1661688

約数和(自身を除く): 1010648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 313, 416, 520, 626, 1040, 1252, 1565, 2080, 2504, 3130, 4069, 5008, 6260, 8138, 10016, 12520, 16276, 20345, 25040, 32552, 40690, 50080, 65104, 81380, 130208, 162760, 325520, 651040]

約数ペア:

[(1, 651040), (2, 325520), (4, 162760), (5, 130208), (8, 81380), (10, 65104), (13, 50080), (16, 40690), (20, 32552), (26, 25040), (32, 20345), (40, 16276), (52, 12520), (65, 10016), (80, 8138), (104, 6260), (130, 5008), (160, 4069), (208, 3130), (260, 2504), (313, 2080), (416, 1565), (520, 1252), (626, 1040)]