18979688

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 46824960

約数和(自身を除く): 27845272

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 31, 52, 56, 58, 62, 91, 104, 116, 124, 182, 203, 217, 232, 248, 364, 377, 403, 406, 434, 728, 754, 806, 812, 841, 868, 899, 1508, 1612, 1624, 1682, 1736, 1798, 2639, 2821, 3016, 3224, 3364, 3596, 5278, 5642, 5887, 6293, 6728, 7192, 10556, 10933, 11284, 11687, 11774, 12586, 21112, 21866, 22568, 23374, 23548, 25172, 26071, 43732, 46748, 47096, 50344, 52142, 76531, 81809, 87464, 93496, 104284, 153062, 163618, 182497, 208568, 306124, 327236, 338923, 364994, 612248, 654472, 677846, 729988, 1355692, 1459976, 2372461, 2711384, 4744922, 9489844, 18979688]

約数ペア:

[(1, 18979688), (2, 9489844), (4, 4744922), (7, 2711384), (8, 2372461), (13, 1459976), (14, 1355692), (26, 729988), (28, 677846), (29, 654472), (31, 612248), (52, 364994), (56, 338923), (58, 327236), (62, 306124), (91, 208568), (104, 182497), (116, 163618), (124, 153062), (182, 104284), (203, 93496), (217, 87464), (232, 81809), (248, 76531), (364, 52142), (377, 50344), (403, 47096), (406, 46748), (434, 43732), (728, 26071), (754, 25172), (806, 23548), (812, 23374), (841, 22568), (868, 21866), (899, 21112), (1508, 12586), (1612, 11774), (1624, 11687), (1682, 11284), (1736, 10933), (1798, 10556), (2639, 7192), (2821, 6728), (3016, 6293), (3224, 5887), (3364, 5642), (3596, 5278)]