18860380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 50867712

約数和(自身を除く): 32007332

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 55, 70, 74, 77, 110, 140, 148, 154, 185, 220, 259, 308, 331, 370, 385, 407, 518, 662, 740, 770, 814, 1036, 1295, 1324, 1540, 1628, 1655, 2035, 2317, 2590, 2849, 3310, 3641, 4070, 4634, 5180, 5698, 6620, 7282, 8140, 9268, 11396, 11585, 12247, 14245, 14564, 18205, 23170, 24494, 25487, 28490, 36410, 46340, 48988, 50974, 56980, 61235, 72820, 85729, 101948, 122470, 127435, 134717, 171458, 244940, 254870, 269434, 342916, 428645, 509740, 538868, 673585, 857290, 943019, 1347170, 1714580, 1886038, 2694340, 3772076, 4715095, 9430190, 18860380]

約数ペア:

[(1, 18860380), (2, 9430190), (4, 4715095), (5, 3772076), (7, 2694340), (10, 1886038), (11, 1714580), (14, 1347170), (20, 943019), (22, 857290), (28, 673585), (35, 538868), (37, 509740), (44, 428645), (55, 342916), (70, 269434), (74, 254870), (77, 244940), (110, 171458), (140, 134717), (148, 127435), (154, 122470), (185, 101948), (220, 85729), (259, 72820), (308, 61235), (331, 56980), (370, 50974), (385, 48988), (407, 46340), (518, 36410), (662, 28490), (740, 25487), (770, 24494), (814, 23170), (1036, 18205), (1295, 14564), (1324, 14245), (1540, 12247), (1628, 11585), (1655, 11396), (2035, 9268), (2317, 8140), (2590, 7282), (2849, 6620), (3310, 5698), (3641, 5180), (4070, 4634)]