18578300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 44913792

約数和(自身を除く): 26335492

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 461, 620, 650, 775, 806, 922, 1300, 1550, 1612, 1844, 2015, 2305, 3100, 4030, 4610, 5993, 8060, 9220, 10075, 11525, 11986, 14291, 20150, 23050, 23972, 28582, 29965, 40300, 46100, 57164, 59930, 71455, 119860, 142910, 149825, 185783, 285820, 299650, 357275, 371566, 599300, 714550, 743132, 928915, 1429100, 1857830, 3715660, 4644575, 9289150, 18578300]

約数ペア:

[(1, 18578300), (2, 9289150), (4, 4644575), (5, 3715660), (10, 1857830), (13, 1429100), (20, 928915), (25, 743132), (26, 714550), (31, 599300), (50, 371566), (52, 357275), (62, 299650), (65, 285820), (100, 185783), (124, 149825), (130, 142910), (155, 119860), (260, 71455), (310, 59930), (325, 57164), (403, 46100), (461, 40300), (620, 29965), (650, 28582), (775, 23972), (806, 23050), (922, 20150), (1300, 14291), (1550, 11986), (1612, 11525), (1844, 10075), (2015, 9220), (2305, 8060), (3100, 5993), (4030, 4610)]