2010421880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1\times {\mathrm{1237}}^1$

素因数の和:2280

約数の個数: 64

約数和(自身を含む): 4642202880

約数和(自身を除く): 2631781000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 991, 1237, 1640, 1982, 2474, 3964, 4948, 4955, 6185, 7928, 9896, 9910, 12370, 19820, 24740, 39640, 40631, 49480, 50717, 81262, 101434, 162524, 202868, 203155, 253585, 325048, 405736, 406310, 507170, 812620, 1014340, 1225867, 1625240, 2028680, 2451734, 4903468, 6129335, 9806936, 12258670, 24517340, 49034680, 50260547, 100521094, 201042188, 251302735, 402084376, 502605470, 1005210940, 2010421880]

約数ペア:

[(1, 2010421880), (2, 1005210940), (4, 502605470), (5, 402084376), (8, 251302735), (10, 201042188), (20, 100521094), (40, 50260547), (41, 49034680), (82, 24517340), (164, 12258670), (205, 9806936), (328, 6129335), (410, 4903468), (820, 2451734), (991, 2028680), (1237, 1625240), (1640, 1225867), (1982, 1014340), (2474, 812620), (3964, 507170), (4948, 406310), (4955, 405736), (6185, 325048), (7928, 253585), (9896, 203155), (9910, 202868), (12370, 162524), (19820, 101434), (24740, 81262), (39640, 50717), (40631, 49480)]