18114850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:116

約数の個数: 72

約数和(自身を含む): 38786580

約数和(自身を除く): 20671730

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 31, 50, 58, 62, 65, 130, 145, 155, 290, 310, 325, 377, 403, 650, 725, 754, 775, 806, 899, 961, 1450, 1550, 1798, 1885, 1922, 2015, 3770, 4030, 4495, 4805, 8990, 9425, 9610, 10075, 11687, 12493, 18850, 20150, 22475, 23374, 24025, 24986, 27869, 44950, 48050, 55738, 58435, 62465, 116870, 124930, 139345, 278690, 292175, 312325, 362297, 584350, 624650, 696725, 724594, 1393450, 1811485, 3622970, 9057425, 18114850]

約数ペア:

[(1, 18114850), (2, 9057425), (5, 3622970), (10, 1811485), (13, 1393450), (25, 724594), (26, 696725), (29, 624650), (31, 584350), (50, 362297), (58, 312325), (62, 292175), (65, 278690), (130, 139345), (145, 124930), (155, 116870), (290, 62465), (310, 58435), (325, 55738), (377, 48050), (403, 44950), (650, 27869), (725, 24986), (754, 24025), (775, 23374), (806, 22475), (899, 20150), (961, 18850), (1450, 12493), (1550, 11687), (1798, 10075), (1885, 9610), (1922, 9425), (2015, 8990), (3770, 4805), (4030, 4495)]