20364210

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:861

約数の個数: 80

約数和(自身を含む): 56593152

約数和(自身を除く): 36228942

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 810, 811, 837, 930, 1395, 1622, 1674, 2433, 2511, 2790, 4055, 4185, 4866, 5022, 7299, 8110, 8370, 12165, 12555, 14598, 21897, 24330, 25110, 25141, 36495, 43794, 50282, 65691, 72990, 75423, 109485, 125705, 131382, 150846, 218970, 226269, 251410, 328455, 377115, 452538, 656910, 678807, 754230, 1131345, 1357614, 2036421, 2262690, 3394035, 4072842, 6788070, 10182105, 20364210]

約数ペア:

[(1, 20364210), (2, 10182105), (3, 6788070), (5, 4072842), (6, 3394035), (9, 2262690), (10, 2036421), (15, 1357614), (18, 1131345), (27, 754230), (30, 678807), (31, 656910), (45, 452538), (54, 377115), (62, 328455), (81, 251410), (90, 226269), (93, 218970), (135, 150846), (155, 131382), (162, 125705), (186, 109485), (270, 75423), (279, 72990), (310, 65691), (405, 50282), (465, 43794), (558, 36495), (810, 25141), (811, 25110), (837, 24330), (930, 21897), (1395, 14598), (1622, 12555), (1674, 12165), (2433, 8370), (2511, 8110), (2790, 7299), (4055, 5022), (4185, 4866)]