18421740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1931}}^1$

素因数の和:1999

約数の個数: 72

約数和(自身を含む): 56963088

約数和(自身を除く): 38541348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 1931, 2385, 3180, 3862, 4770, 5793, 7724, 9540, 9655, 11586, 17379, 19310, 23172, 28965, 34758, 38620, 57930, 69516, 86895, 102343, 115860, 173790, 204686, 307029, 347580, 409372, 511715, 614058, 921087, 1023430, 1228116, 1535145, 1842174, 2046860, 3070290, 3684348, 4605435, 6140580, 9210870, 18421740]

約数ペア:

[(1, 18421740), (2, 9210870), (3, 6140580), (4, 4605435), (5, 3684348), (6, 3070290), (9, 2046860), (10, 1842174), (12, 1535145), (15, 1228116), (18, 1023430), (20, 921087), (30, 614058), (36, 511715), (45, 409372), (53, 347580), (60, 307029), (90, 204686), (106, 173790), (159, 115860), (180, 102343), (212, 86895), (265, 69516), (318, 57930), (477, 38620), (530, 34758), (636, 28965), (795, 23172), (954, 19310), (1060, 17379), (1590, 11586), (1908, 9655), (1931, 9540), (2385, 7724), (3180, 5793), (3862, 4770)]