349547080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{143257}}^1$

素因数の和:143329

約数の個数: 32

約数和(自身を含む): 799379640

約数和(自身を除く): 449832560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 143257, 286514, 573028, 716285, 1146056, 1432570, 2865140, 5730280, 8738677, 17477354, 34954708, 43693385, 69909416, 87386770, 174773540, 349547080]

約数ペア:

[(1, 349547080), (2, 174773540), (4, 87386770), (5, 69909416), (8, 43693385), (10, 34954708), (20, 17477354), (40, 8738677), (61, 5730280), (122, 2865140), (244, 1432570), (305, 1146056), (488, 716285), (610, 573028), (1220, 286514), (2440, 143257)]