18653420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 42039648

約数和(自身を除く): 23386228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 332, 340, 415, 661, 830, 1322, 1411, 1660, 2644, 2822, 3305, 5644, 6610, 7055, 11237, 13220, 14110, 22474, 28220, 44948, 54863, 56185, 109726, 112370, 219452, 224740, 274315, 548630, 932671, 1097260, 1865342, 3730684, 4663355, 9326710, 18653420]

約数ペア:

[(1, 18653420), (2, 9326710), (4, 4663355), (5, 3730684), (10, 1865342), (17, 1097260), (20, 932671), (34, 548630), (68, 274315), (83, 224740), (85, 219452), (166, 112370), (170, 109726), (332, 56185), (340, 54863), (415, 44948), (661, 28220), (830, 22474), (1322, 14110), (1411, 13220), (1660, 11237), (2644, 7055), (2822, 6610), (3305, 5644)]