2028754520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{9539}}^1$

素因数の和:9972

約数の個数: 64

約数和(自身を含む): 4928364000

約数和(自身を除く): 2899609480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 409, 520, 818, 1636, 2045, 3272, 4090, 5317, 8180, 9539, 10634, 16360, 19078, 21268, 26585, 38156, 42536, 47695, 53170, 76312, 95390, 106340, 124007, 190780, 212680, 248014, 381560, 496028, 620035, 992056, 1240070, 2480140, 3901451, 4960280, 7802902, 15605804, 19507255, 31211608, 39014510, 50718863, 78029020, 101437726, 156058040, 202875452, 253594315, 405750904, 507188630, 1014377260, 2028754520]

約数ペア:

[(1, 2028754520), (2, 1014377260), (4, 507188630), (5, 405750904), (8, 253594315), (10, 202875452), (13, 156058040), (20, 101437726), (26, 78029020), (40, 50718863), (52, 39014510), (65, 31211608), (104, 19507255), (130, 15605804), (260, 7802902), (409, 4960280), (520, 3901451), (818, 2480140), (1636, 1240070), (2045, 992056), (3272, 620035), (4090, 496028), (5317, 381560), (8180, 248014), (9539, 212680), (10634, 190780), (16360, 124007), (19078, 106340), (21268, 95390), (26585, 76312), (38156, 53170), (42536, 47695)]