201827980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1\times {\mathrm{887}}^1$

素因数の和:1294

約数の個数: 48

約数和(自身を含む): 439197696

約数和(自身を除く): 237369716

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 367, 620, 734, 887, 1468, 1774, 1835, 3548, 3670, 4435, 7340, 8870, 11377, 17740, 22754, 27497, 45508, 54994, 56885, 109988, 113770, 137485, 227540, 274970, 325529, 549940, 651058, 1302116, 1627645, 3255290, 6510580, 10091399, 20182798, 40365596, 50456995, 100913990, 201827980]

約数ペア:

[(1, 201827980), (2, 100913990), (4, 50456995), (5, 40365596), (10, 20182798), (20, 10091399), (31, 6510580), (62, 3255290), (124, 1627645), (155, 1302116), (310, 651058), (367, 549940), (620, 325529), (734, 274970), (887, 227540), (1468, 137485), (1774, 113770), (1835, 109988), (3548, 56885), (3670, 54994), (4435, 45508), (7340, 27497), (8870, 22754), (11377, 17740)]