281803640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{7331}}^1$

素因数の和:7404

約数の個数: 48

約数和(自身を含む): 655260840

約数和(自身を除く): 373457200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7331, 7688, 9610, 14662, 19220, 29324, 36655, 38440, 58648, 73310, 146620, 227261, 293240, 454522, 909044, 1136305, 1818088, 2272610, 4545220, 7045091, 9090440, 14090182, 28180364, 35225455, 56360728, 70450910, 140901820, 281803640]

約数ペア:

[(1, 281803640), (2, 140901820), (4, 70450910), (5, 56360728), (8, 35225455), (10, 28180364), (20, 14090182), (31, 9090440), (40, 7045091), (62, 4545220), (124, 2272610), (155, 1818088), (248, 1136305), (310, 909044), (620, 454522), (961, 293240), (1240, 227261), (1922, 146620), (3844, 73310), (4805, 58648), (7331, 38440), (7688, 36655), (9610, 29324), (14662, 19220)]