31481240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3877}}^1$

素因数の和:3924

約数の個数: 64

約数和(自身を含む): 83764800

約数和(自身を除く): 52283560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 3877, 4060, 7754, 8120, 15508, 19385, 27139, 31016, 38770, 54278, 77540, 108556, 112433, 135695, 155080, 217112, 224866, 271390, 449732, 542780, 562165, 787031, 899464, 1085560, 1124330, 1574062, 2248660, 3148124, 3935155, 4497320, 6296248, 7870310, 15740620, 31481240]

約数ペア:

[(1, 31481240), (2, 15740620), (4, 7870310), (5, 6296248), (7, 4497320), (8, 3935155), (10, 3148124), (14, 2248660), (20, 1574062), (28, 1124330), (29, 1085560), (35, 899464), (40, 787031), (56, 562165), (58, 542780), (70, 449732), (116, 271390), (140, 224866), (145, 217112), (203, 155080), (232, 135695), (280, 112433), (290, 108556), (406, 77540), (580, 54278), (812, 38770), (1015, 31016), (1160, 27139), (1624, 19385), (2030, 15508), (3877, 8120), (4060, 7754)]