425680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 1051272

約数和(自身を除く): 625592

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 313, 340, 626, 680, 1252, 1360, 1565, 2504, 3130, 5008, 5321, 6260, 10642, 12520, 21284, 25040, 26605, 42568, 53210, 85136, 106420, 212840, 425680]

約数ペア:

[(1, 425680), (2, 212840), (4, 106420), (5, 85136), (8, 53210), (10, 42568), (16, 26605), (17, 25040), (20, 21284), (34, 12520), (40, 10642), (68, 6260), (80, 5321), (85, 5008), (136, 3130), (170, 2504), (272, 1565), (313, 1360), (340, 1252), (626, 680)]