81212460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10177}}^1$

素因数の和:10215

約数の個数: 96

約数和(自身を含む): 273584640

約数和(自身を除く): 192372180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 10177, 20354, 30531, 40708, 50885, 61062, 71239, 101770, 122124, 142478, 152655, 193363, 203540, 213717, 284956, 305310, 356195, 386726, 427434, 580089, 610620, 712390, 773452, 854868, 966815, 1068585, 1160178, 1353541, 1424780, 1933630, 2137170, 2320356, 2707082, 2900445, 3867260, 4060623, 4274340, 5414164, 5800890, 6767705, 8121246, 11601780, 13535410, 16242492, 20303115, 27070820, 40606230, 81212460]

約数ペア:

[(1, 81212460), (2, 40606230), (3, 27070820), (4, 20303115), (5, 16242492), (6, 13535410), (7, 11601780), (10, 8121246), (12, 6767705), (14, 5800890), (15, 5414164), (19, 4274340), (20, 4060623), (21, 3867260), (28, 2900445), (30, 2707082), (35, 2320356), (38, 2137170), (42, 1933630), (57, 1424780), (60, 1353541), (70, 1160178), (76, 1068585), (84, 966815), (95, 854868), (105, 773452), (114, 712390), (133, 610620), (140, 580089), (190, 427434), (210, 386726), (228, 356195), (266, 305310), (285, 284956), (380, 213717), (399, 203540), (420, 193363), (532, 152655), (570, 142478), (665, 122124), (798, 101770), (1140, 71239), (1330, 61062), (1596, 50885), (1995, 40708), (2660, 30531), (3990, 20354), (7980, 10177)]