642043480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39829}}^1$

素因数の和:39884

約数の個数: 64

約数和(自身を含む): 1605945600

約数和(自身を除く): 963902120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 39829, 79658, 159316, 199145, 318632, 398290, 517777, 796580, 1035554, 1234699, 1593160, 2071108, 2469398, 2588885, 4142216, 4938796, 5177770, 6173495, 9877592, 10355540, 12346990, 16051087, 20711080, 24693980, 32102174, 49387960, 64204348, 80255435, 128408696, 160510870, 321021740, 642043480]

約数ペア:

[(1, 642043480), (2, 321021740), (4, 160510870), (5, 128408696), (8, 80255435), (10, 64204348), (13, 49387960), (20, 32102174), (26, 24693980), (31, 20711080), (40, 16051087), (52, 12346990), (62, 10355540), (65, 9877592), (104, 6173495), (124, 5177770), (130, 4938796), (155, 4142216), (248, 2588885), (260, 2469398), (310, 2071108), (403, 1593160), (520, 1234699), (620, 1035554), (806, 796580), (1240, 517777), (1612, 398290), (2015, 318632), (3224, 199145), (4030, 159316), (8060, 79658), (16120, 39829)]