51219740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17909}}^1$

素因数の和:17942

約数の個数: 48

約数和(自身を含む): 126372960

約数和(自身を除く): 75153220

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 17909, 35818, 71636, 89545, 179090, 196999, 232817, 358180, 393998, 465634, 787996, 931268, 984995, 1164085, 1969990, 2328170, 2560987, 3939980, 4656340, 5121974, 10243948, 12804935, 25609870, 51219740]

約数ペア:

[(1, 51219740), (2, 25609870), (4, 12804935), (5, 10243948), (10, 5121974), (11, 4656340), (13, 3939980), (20, 2560987), (22, 2328170), (26, 1969990), (44, 1164085), (52, 984995), (55, 931268), (65, 787996), (110, 465634), (130, 393998), (143, 358180), (220, 232817), (260, 196999), (286, 179090), (572, 89545), (715, 71636), (1430, 35818), (2860, 17909)]