28068180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9547}}^1$

素因数の和:9573

約数の個数: 72

約数和(自身を含む): 91431648

約数和(自身を除く): 63363468

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, 9547, 19094, 28641, 38188, 47735, 57282, 66829, 95470, 114564, 133658, 143205, 190940, 200487, 267316, 286410, 334145, 400974, 467803, 572820, 668290, 801948, 935606, 1002435, 1336580, 1403409, 1871212, 2004870, 2339015, 2806818, 4009740, 4678030, 5613636, 7017045, 9356060, 14034090, 28068180]

約数ペア:

[(1, 28068180), (2, 14034090), (3, 9356060), (4, 7017045), (5, 5613636), (6, 4678030), (7, 4009740), (10, 2806818), (12, 2339015), (14, 2004870), (15, 1871212), (20, 1403409), (21, 1336580), (28, 1002435), (30, 935606), (35, 801948), (42, 668290), (49, 572820), (60, 467803), (70, 400974), (84, 334145), (98, 286410), (105, 267316), (140, 200487), (147, 190940), (196, 143205), (210, 133658), (245, 114564), (294, 95470), (420, 66829), (490, 57282), (588, 47735), (735, 38188), (980, 28641), (1470, 19094), (2940, 9547)]