678451190

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{3251}}^1$

素因数の和:3808

約数の個数: 32

約数和(自身を含む): 1253841120

約数和(自身を除く): 575389930

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 509, 1018, 2545, 3251, 5090, 6502, 16255, 20869, 32510, 41738, 104345, 133291, 208690, 266582, 666455, 1332910, 1654759, 3309518, 8273795, 16547590, 67845119, 135690238, 339225595, 678451190]

約数ペア:

[(1, 678451190), (2, 339225595), (5, 135690238), (10, 67845119), (41, 16547590), (82, 8273795), (205, 3309518), (410, 1654759), (509, 1332910), (1018, 666455), (2545, 266582), (3251, 208690), (5090, 133291), (6502, 104345), (16255, 41738), (20869, 32510)]