18774470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:741

約数の個数: 64

約数和(自身を含む): 41852160

約数和(自身を除く): 23077690

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 130, 143, 190, 209, 247, 286, 418, 494, 691, 715, 1045, 1235, 1382, 1430, 2090, 2470, 2717, 3455, 5434, 6910, 7601, 8983, 13129, 13585, 15202, 17966, 26258, 27170, 38005, 44915, 65645, 76010, 89830, 98813, 131290, 144419, 170677, 197626, 288838, 341354, 494065, 722095, 853385, 988130, 1444190, 1706770, 1877447, 3754894, 9387235, 18774470]

約数ペア:

[(1, 18774470), (2, 9387235), (5, 3754894), (10, 1877447), (11, 1706770), (13, 1444190), (19, 988130), (22, 853385), (26, 722095), (38, 494065), (55, 341354), (65, 288838), (95, 197626), (110, 170677), (130, 144419), (143, 131290), (190, 98813), (209, 89830), (247, 76010), (286, 65645), (418, 44915), (494, 38005), (691, 27170), (715, 26258), (1045, 17966), (1235, 15202), (1382, 13585), (1430, 13129), (2090, 8983), (2470, 7601), (2717, 6910), (3455, 5434)]