490840360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{113}}^2$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 1151353710

約数和(自身を除く): 660513350

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 226, 248, 310, 452, 565, 620, 904, 961, 1130, 1240, 1922, 2260, 3503, 3844, 4520, 4805, 7006, 7688, 9610, 12769, 14012, 17515, 19220, 25538, 28024, 35030, 38440, 51076, 63845, 70060, 102152, 108593, 127690, 140120, 217186, 255380, 395839, 434372, 510760, 542965, 791678, 868744, 1085930, 1583356, 1979195, 2171860, 3166712, 3958390, 4343720, 7916780, 12271009, 15833560, 24542018, 49084036, 61355045, 98168072, 122710090, 245420180, 490840360]

約数ペア:

[(1, 490840360), (2, 245420180), (4, 122710090), (5, 98168072), (8, 61355045), (10, 49084036), (20, 24542018), (31, 15833560), (40, 12271009), (62, 7916780), (113, 4343720), (124, 3958390), (155, 3166712), (226, 2171860), (248, 1979195), (310, 1583356), (452, 1085930), (565, 868744), (620, 791678), (904, 542965), (961, 510760), (1130, 434372), (1240, 395839), (1922, 255380), (2260, 217186), (3503, 140120), (3844, 127690), (4520, 108593), (4805, 102152), (7006, 70060), (7688, 63845), (9610, 51076), (12769, 38440), (14012, 35030), (17515, 28024), (19220, 25538)]