19102760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7829}}^1$

素因数の和:7901

約数の個数: 32

約数和(自身を含む): 43691400

約数和(自身を除く): 24588640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7829, 15658, 31316, 39145, 62632, 78290, 156580, 313160, 477569, 955138, 1910276, 2387845, 3820552, 4775690, 9551380, 19102760]

約数ペア:

[(1, 19102760), (2, 9551380), (4, 4775690), (5, 3820552), (8, 2387845), (10, 1910276), (20, 955138), (40, 477569), (61, 313160), (122, 156580), (244, 78290), (305, 62632), (488, 39145), (610, 31316), (1220, 15658), (2440, 7829)]