291219890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 588349440

約数和(自身を除く): 297129550

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 127, 130, 155, 254, 310, 403, 569, 635, 806, 1138, 1270, 1651, 2015, 2845, 3302, 3937, 4030, 5690, 7397, 7874, 8255, 14794, 16510, 17639, 19685, 35278, 36985, 39370, 51181, 72263, 73970, 88195, 102362, 144526, 176390, 229307, 255905, 361315, 458614, 511810, 722630, 939419, 1146535, 1878838, 2240153, 2293070, 4480306, 4697095, 9394190, 11200765, 22401530, 29121989, 58243978, 145609945, 291219890]

約数ペア:

[(1, 291219890), (2, 145609945), (5, 58243978), (10, 29121989), (13, 22401530), (26, 11200765), (31, 9394190), (62, 4697095), (65, 4480306), (127, 2293070), (130, 2240153), (155, 1878838), (254, 1146535), (310, 939419), (403, 722630), (569, 511810), (635, 458614), (806, 361315), (1138, 255905), (1270, 229307), (1651, 176390), (2015, 144526), (2845, 102362), (3302, 88195), (3937, 73970), (4030, 72263), (5690, 51181), (7397, 39370), (7874, 36985), (8255, 35278), (14794, 19685), (16510, 17639)]