31210380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1993}}^1$

素因数の和:2040

約数の個数: 96

約数和(自身を含む): 100497600

約数和(自身を除く): 69287220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 87, 90, 108, 116, 135, 145, 174, 180, 261, 270, 290, 348, 435, 522, 540, 580, 783, 870, 1044, 1305, 1566, 1740, 1993, 2610, 3132, 3915, 3986, 5220, 5979, 7830, 7972, 9965, 11958, 15660, 17937, 19930, 23916, 29895, 35874, 39860, 53811, 57797, 59790, 71748, 89685, 107622, 115594, 119580, 173391, 179370, 215244, 231188, 269055, 288985, 346782, 358740, 520173, 538110, 577970, 693564, 866955, 1040346, 1076220, 1155940, 1560519, 1733910, 2080692, 2600865, 3121038, 3467820, 5201730, 6242076, 7802595, 10403460, 15605190, 31210380]

約数ペア:

[(1, 31210380), (2, 15605190), (3, 10403460), (4, 7802595), (5, 6242076), (6, 5201730), (9, 3467820), (10, 3121038), (12, 2600865), (15, 2080692), (18, 1733910), (20, 1560519), (27, 1155940), (29, 1076220), (30, 1040346), (36, 866955), (45, 693564), (54, 577970), (58, 538110), (60, 520173), (87, 358740), (90, 346782), (108, 288985), (116, 269055), (135, 231188), (145, 215244), (174, 179370), (180, 173391), (261, 119580), (270, 115594), (290, 107622), (348, 89685), (435, 71748), (522, 59790), (540, 57797), (580, 53811), (783, 39860), (870, 35874), (1044, 29895), (1305, 23916), (1566, 19930), (1740, 17937), (1993, 15660), (2610, 11958), (3132, 9965), (3915, 7972), (3986, 7830), (5220, 5979)]