13260340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 30203712

約数和(自身を除く): 16943372

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 907, 1462, 1814, 2924, 3628, 3655, 4535, 7310, 9070, 14620, 15419, 18140, 30838, 39001, 61676, 77095, 78002, 154190, 156004, 195005, 308380, 390010, 663017, 780020, 1326034, 2652068, 3315085, 6630170, 13260340]

約数ペア:

[(1, 13260340), (2, 6630170), (4, 3315085), (5, 2652068), (10, 1326034), (17, 780020), (20, 663017), (34, 390010), (43, 308380), (68, 195005), (85, 156004), (86, 154190), (170, 78002), (172, 77095), (215, 61676), (340, 39001), (430, 30838), (731, 18140), (860, 15419), (907, 14620), (1462, 9070), (1814, 7310), (2924, 4535), (3628, 3655)]