15438830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 32659200

約数和(自身を除く): 17220370

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 83, 89, 95, 110, 166, 178, 190, 209, 415, 418, 445, 830, 890, 913, 979, 1045, 1577, 1691, 1826, 1958, 2090, 3154, 3382, 4565, 4895, 7387, 7885, 8455, 9130, 9790, 14774, 15770, 16910, 17347, 18601, 34694, 36935, 37202, 73870, 81257, 86735, 93005, 140353, 162514, 173470, 186010, 280706, 406285, 701765, 812570, 1403530, 1543883, 3087766, 7719415, 15438830]

約数ペア:

[(1, 15438830), (2, 7719415), (5, 3087766), (10, 1543883), (11, 1403530), (19, 812570), (22, 701765), (38, 406285), (55, 280706), (83, 186010), (89, 173470), (95, 162514), (110, 140353), (166, 93005), (178, 86735), (190, 81257), (209, 73870), (415, 37202), (418, 36935), (445, 34694), (830, 18601), (890, 17347), (913, 16910), (979, 15770), (1045, 14774), (1577, 9790), (1691, 9130), (1826, 8455), (1958, 7885), (2090, 7387), (3154, 4895), (3382, 4565)]