285087160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3769}}^1$

素因数の和:3872

約数の個数: 64

約数和(自身を含む): 673171200

約数和(自身を除く): 388084040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 3769, 3782, 7538, 7564, 9455, 15076, 15128, 18845, 18910, 30152, 37690, 37820, 75380, 75640, 116839, 150760, 229909, 233678, 459818, 467356, 584195, 919636, 934712, 1149545, 1168390, 1839272, 2299090, 2336780, 4598180, 4673560, 7127179, 9196360, 14254358, 28508716, 35635895, 57017432, 71271790, 142543580, 285087160]

約数ペア:

[(1, 285087160), (2, 142543580), (4, 71271790), (5, 57017432), (8, 35635895), (10, 28508716), (20, 14254358), (31, 9196360), (40, 7127179), (61, 4673560), (62, 4598180), (122, 2336780), (124, 2299090), (155, 1839272), (244, 1168390), (248, 1149545), (305, 934712), (310, 919636), (488, 584195), (610, 467356), (620, 459818), (1220, 233678), (1240, 229909), (1891, 150760), (2440, 116839), (3769, 75640), (3782, 75380), (7538, 37820), (7564, 37690), (9455, 30152), (15076, 18910), (15128, 18845)]