20118402780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{113779}}^1$

素因数の和:114219

約数の個数: 96

約数和(自身を含む): 64532375040

約数和(自身を除く): 44413972260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 421, 842, 1263, 1684, 2105, 2526, 2947, 4210, 5052, 5894, 6315, 8420, 8841, 11788, 12630, 14735, 17682, 25260, 29470, 35364, 44205, 58940, 88410, 113779, 176820, 227558, 341337, 455116, 568895, 682674, 796453, 1137790, 1365348, 1592906, 1706685, 2275580, 2389359, 3185812, 3413370, 3982265, 4778718, 6826740, 7964530, 9557436, 11946795, 15929060, 23893590, 47787180, 47900959, 95801918, 143702877, 191603836, 239504795, 287405754, 335306713, 479009590, 574811508, 670613426, 718514385, 958019180, 1005920139, 1341226852, 1437028770, 1676533565, 2011840278, 2874057540, 3353067130, 4023680556, 5029600695, 6706134260, 10059201390, 20118402780]

約数ペア:

[(1, 20118402780), (2, 10059201390), (3, 6706134260), (4, 5029600695), (5, 4023680556), (6, 3353067130), (7, 2874057540), (10, 2011840278), (12, 1676533565), (14, 1437028770), (15, 1341226852), (20, 1005920139), (21, 958019180), (28, 718514385), (30, 670613426), (35, 574811508), (42, 479009590), (60, 335306713), (70, 287405754), (84, 239504795), (105, 191603836), (140, 143702877), (210, 95801918), (420, 47900959), (421, 47787180), (842, 23893590), (1263, 15929060), (1684, 11946795), (2105, 9557436), (2526, 7964530), (2947, 6826740), (4210, 4778718), (5052, 3982265), (5894, 3413370), (6315, 3185812), (8420, 2389359), (8841, 2275580), (11788, 1706685), (12630, 1592906), (14735, 1365348), (17682, 1137790), (25260, 796453), (29470, 682674), (35364, 568895), (44205, 455116), (58940, 341337), (88410, 227558), (113779, 176820)]