18855460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1543}}^1$

素因数の和:1612

約数の個数: 48

約数和(自身を含む): 43577856

約数和(自身を除く): 24722396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 1543, 2444, 3055, 3086, 6110, 6172, 7715, 12220, 15430, 20059, 30860, 40118, 72521, 80236, 100295, 145042, 200590, 290084, 362605, 401180, 725210, 942773, 1450420, 1885546, 3771092, 4713865, 9427730, 18855460]

約数ペア:

[(1, 18855460), (2, 9427730), (4, 4713865), (5, 3771092), (10, 1885546), (13, 1450420), (20, 942773), (26, 725210), (47, 401180), (52, 362605), (65, 290084), (94, 200590), (130, 145042), (188, 100295), (235, 80236), (260, 72521), (470, 40118), (611, 30860), (940, 20059), (1222, 15430), (1543, 12220), (2444, 7715), (3055, 6172), (3086, 6110)]