2018065980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{686417}}^1$

素因数の和:686443

約数の個数: 72

約数和(自身を含む): 6573138768

約数和(自身を除く): 4555072788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 686417, 1372834, 2059251, 2745668, 3432085, 4118502, 4804919, 6864170, 8237004, 9609838, 10296255, 13728340, 14414757, 19219676, 20592510, 24024595, 28829514, 33634433, 41185020, 48049190, 57659028, 67268866, 72073785, 96098380, 100903299, 134537732, 144147570, 168172165, 201806598, 288295140, 336344330, 403613196, 504516495, 672688660, 1009032990, 2018065980]

約数ペア:

[(1, 2018065980), (2, 1009032990), (3, 672688660), (4, 504516495), (5, 403613196), (6, 336344330), (7, 288295140), (10, 201806598), (12, 168172165), (14, 144147570), (15, 134537732), (20, 100903299), (21, 96098380), (28, 72073785), (30, 67268866), (35, 57659028), (42, 48049190), (49, 41185020), (60, 33634433), (70, 28829514), (84, 24024595), (98, 20592510), (105, 19219676), (140, 14414757), (147, 13728340), (196, 10296255), (210, 9609838), (245, 8237004), (294, 6864170), (420, 4804919), (490, 4118502), (588, 3432085), (735, 2745668), (980, 2059251), (1470, 1372834), (2940, 686417)]