18895860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{929}}^1$

素因数の和:1057

約数の個数: 72

約数和(自身を含む): 57886920

約数和(自身を除く): 38991060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 226, 339, 452, 565, 678, 929, 1017, 1130, 1356, 1695, 1858, 2034, 2260, 2787, 3390, 3716, 4068, 4645, 5085, 5574, 6780, 8361, 9290, 10170, 11148, 13935, 16722, 18580, 20340, 27870, 33444, 41805, 55740, 83610, 104977, 167220, 209954, 314931, 419908, 524885, 629862, 944793, 1049770, 1259724, 1574655, 1889586, 2099540, 3149310, 3779172, 4723965, 6298620, 9447930, 18895860]

約数ペア:

[(1, 18895860), (2, 9447930), (3, 6298620), (4, 4723965), (5, 3779172), (6, 3149310), (9, 2099540), (10, 1889586), (12, 1574655), (15, 1259724), (18, 1049770), (20, 944793), (30, 629862), (36, 524885), (45, 419908), (60, 314931), (90, 209954), (113, 167220), (180, 104977), (226, 83610), (339, 55740), (452, 41805), (565, 33444), (678, 27870), (929, 20340), (1017, 18580), (1130, 16722), (1356, 13935), (1695, 11148), (1858, 10170), (2034, 9290), (2260, 8361), (2787, 6780), (3390, 5574), (3716, 5085), (4068, 4645)]