80662820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1553}}^1$

素因数の和:1629

約数の個数: 72

約数和(自身を含む): 200894904

約数和(自身を除く): 120232084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 371, 490, 530, 742, 980, 1060, 1484, 1553, 1855, 2597, 3106, 3710, 5194, 6212, 7420, 7765, 10388, 10871, 12985, 15530, 21742, 25970, 31060, 43484, 51940, 54355, 76097, 82309, 108710, 152194, 164618, 217420, 304388, 329236, 380485, 411545, 576163, 760970, 823090, 1152326, 1521940, 1646180, 2304652, 2880815, 4033141, 5761630, 8066282, 11523260, 16132564, 20165705, 40331410, 80662820]

約数ペア:

[(1, 80662820), (2, 40331410), (4, 20165705), (5, 16132564), (7, 11523260), (10, 8066282), (14, 5761630), (20, 4033141), (28, 2880815), (35, 2304652), (49, 1646180), (53, 1521940), (70, 1152326), (98, 823090), (106, 760970), (140, 576163), (196, 411545), (212, 380485), (245, 329236), (265, 304388), (371, 217420), (490, 164618), (530, 152194), (742, 108710), (980, 82309), (1060, 76097), (1484, 54355), (1553, 51940), (1855, 43484), (2597, 31060), (3106, 25970), (3710, 21742), (5194, 15530), (6212, 12985), (7420, 10871), (7765, 10388)]