313820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 48

約数和(自身を含む): 762048

約数和(自身を除く): 448228

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 71, 85, 130, 142, 170, 221, 260, 284, 340, 355, 442, 710, 884, 923, 1105, 1207, 1420, 1846, 2210, 2414, 3692, 4420, 4615, 4828, 6035, 9230, 12070, 15691, 18460, 24140, 31382, 62764, 78455, 156910, 313820]

約数ペア:

[(1, 313820), (2, 156910), (4, 78455), (5, 62764), (10, 31382), (13, 24140), (17, 18460), (20, 15691), (26, 12070), (34, 9230), (52, 6035), (65, 4828), (68, 4615), (71, 4420), (85, 3692), (130, 2414), (142, 2210), (170, 1846), (221, 1420), (260, 1207), (284, 1105), (340, 923), (355, 884), (442, 710)]