65512220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4481}}^1$

素因数の和:4550

約数の個数: 48

約数和(自身を含む): 149089248

約数和(自身を除く): 83577028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1462, 2924, 3655, 4481, 7310, 8962, 14620, 17924, 22405, 44810, 76177, 89620, 152354, 192683, 304708, 380885, 385366, 761770, 770732, 963415, 1523540, 1926830, 3275611, 3853660, 6551222, 13102444, 16378055, 32756110, 65512220]

約数ペア:

[(1, 65512220), (2, 32756110), (4, 16378055), (5, 13102444), (10, 6551222), (17, 3853660), (20, 3275611), (34, 1926830), (43, 1523540), (68, 963415), (85, 770732), (86, 761770), (170, 385366), (172, 380885), (215, 304708), (340, 192683), (430, 152354), (731, 89620), (860, 76177), (1462, 44810), (2924, 22405), (3655, 17924), (4481, 14620), (7310, 8962)]