851620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 2298240

約数和(自身を除く): 1446620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 79, 98, 110, 140, 154, 158, 196, 220, 245, 308, 316, 385, 395, 490, 539, 553, 770, 790, 869, 980, 1078, 1106, 1540, 1580, 1738, 2156, 2212, 2695, 2765, 3476, 3871, 4345, 5390, 5530, 6083, 7742, 8690, 10780, 11060, 12166, 15484, 17380, 19355, 24332, 30415, 38710, 42581, 60830, 77420, 85162, 121660, 170324, 212905, 425810, 851620]

約数ペア:

[(1, 851620), (2, 425810), (4, 212905), (5, 170324), (7, 121660), (10, 85162), (11, 77420), (14, 60830), (20, 42581), (22, 38710), (28, 30415), (35, 24332), (44, 19355), (49, 17380), (55, 15484), (70, 12166), (77, 11060), (79, 10780), (98, 8690), (110, 7742), (140, 6083), (154, 5530), (158, 5390), (196, 4345), (220, 3871), (245, 3476), (308, 2765), (316, 2695), (385, 2212), (395, 2156), (490, 1738), (539, 1580), (553, 1540), (770, 1106), (790, 1078), (869, 980)]