55409960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22709}}^1$

素因数の和:22781

約数の個数: 32

約数和(自身を含む): 126721800

約数和(自身を除く): 71311840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 22709, 45418, 90836, 113545, 181672, 227090, 454180, 908360, 1385249, 2770498, 5540996, 6926245, 11081992, 13852490, 27704980, 55409960]

約数ペア:

[(1, 55409960), (2, 27704980), (4, 13852490), (5, 11081992), (8, 6926245), (10, 5540996), (20, 2770498), (40, 1385249), (61, 908360), (122, 454180), (244, 227090), (305, 181672), (488, 113545), (610, 90836), (1220, 45418), (2440, 22709)]