320416740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{254299}}^1$

素因数の和:254321

約数の個数: 72

約数和(自身を含む): 1110782400

約数和(自身を除く): 790365660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 254299, 508598, 762897, 1017196, 1271495, 1525794, 1780093, 2288691, 2542990, 3051588, 3560186, 3814485, 4577382, 5085980, 5340279, 7120372, 7628970, 8900465, 9154764, 10680558, 11443455, 15257940, 16020837, 17800930, 21361116, 22886910, 26701395, 32041674, 35601860, 45773820, 53402790, 64083348, 80104185, 106805580, 160208370, 320416740]

約数ペア:

[(1, 320416740), (2, 160208370), (3, 106805580), (4, 80104185), (5, 64083348), (6, 53402790), (7, 45773820), (9, 35601860), (10, 32041674), (12, 26701395), (14, 22886910), (15, 21361116), (18, 17800930), (20, 16020837), (21, 15257940), (28, 11443455), (30, 10680558), (35, 9154764), (36, 8900465), (42, 7628970), (45, 7120372), (60, 5340279), (63, 5085980), (70, 4577382), (84, 3814485), (90, 3560186), (105, 3051588), (126, 2542990), (140, 2288691), (180, 1780093), (210, 1525794), (252, 1271495), (315, 1017196), (420, 762897), (630, 508598), (1260, 254299)]