3508820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 8563968

約数和(自身を除く): 5055148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 353, 355, 497, 706, 710, 994, 1412, 1420, 1765, 1988, 2471, 2485, 3530, 4942, 4970, 7060, 9884, 9940, 12355, 24710, 25063, 49420, 50126, 100252, 125315, 175441, 250630, 350882, 501260, 701764, 877205, 1754410, 3508820]

約数ペア:

[(1, 3508820), (2, 1754410), (4, 877205), (5, 701764), (7, 501260), (10, 350882), (14, 250630), (20, 175441), (28, 125315), (35, 100252), (70, 50126), (71, 49420), (140, 25063), (142, 24710), (284, 12355), (353, 9940), (355, 9884), (497, 7060), (706, 4970), (710, 4942), (994, 3530), (1412, 2485), (1420, 2471), (1765, 1988)]