18645260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 44997120

約数和(自身を除く): 26351860

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 31, 34, 58, 61, 62, 68, 85, 116, 122, 124, 145, 155, 170, 244, 290, 305, 310, 340, 493, 527, 580, 610, 620, 899, 986, 1037, 1054, 1220, 1769, 1798, 1891, 1972, 2074, 2108, 2465, 2635, 3538, 3596, 3782, 4148, 4495, 4930, 5185, 5270, 7076, 7564, 8845, 8990, 9455, 9860, 10370, 10540, 15283, 17690, 17980, 18910, 20740, 30073, 30566, 32147, 35380, 37820, 54839, 60146, 61132, 64294, 76415, 109678, 120292, 128588, 150365, 152830, 160735, 219356, 274195, 300730, 305660, 321470, 548390, 601460, 642940, 932263, 1096780, 1864526, 3729052, 4661315, 9322630, 18645260]

約数ペア:

[(1, 18645260), (2, 9322630), (4, 4661315), (5, 3729052), (10, 1864526), (17, 1096780), (20, 932263), (29, 642940), (31, 601460), (34, 548390), (58, 321470), (61, 305660), (62, 300730), (68, 274195), (85, 219356), (116, 160735), (122, 152830), (124, 150365), (145, 128588), (155, 120292), (170, 109678), (244, 76415), (290, 64294), (305, 61132), (310, 60146), (340, 54839), (493, 37820), (527, 35380), (580, 32147), (610, 30566), (620, 30073), (899, 20740), (986, 18910), (1037, 17980), (1054, 17690), (1220, 15283), (1769, 10540), (1798, 10370), (1891, 9860), (1972, 9455), (2074, 8990), (2108, 8845), (2465, 7564), (2635, 7076), (3538, 5270), (3596, 5185), (3782, 4930), (4148, 4495)]