18955728

素因数分解:

$2^4\times 3^3\times {\mathrm{11}}^1\times {\mathrm{3989}}^1$

素因数の和:4017

約数の個数: 80

約数和(自身を含む): 59371200

約数和(自身を除く): 40415472

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 88, 99, 108, 132, 144, 176, 198, 216, 264, 297, 396, 432, 528, 594, 792, 1188, 1584, 2376, 3989, 4752, 7978, 11967, 15956, 23934, 31912, 35901, 43879, 47868, 63824, 71802, 87758, 95736, 107703, 131637, 143604, 175516, 191472, 215406, 263274, 287208, 351032, 394911, 430812, 526548, 574416, 702064, 789822, 861624, 1053096, 1184733, 1579644, 1723248, 2106192, 2369466, 3159288, 4738932, 6318576, 9477864, 18955728]

約数ペア:

[(1, 18955728), (2, 9477864), (3, 6318576), (4, 4738932), (6, 3159288), (8, 2369466), (9, 2106192), (11, 1723248), (12, 1579644), (16, 1184733), (18, 1053096), (22, 861624), (24, 789822), (27, 702064), (33, 574416), (36, 526548), (44, 430812), (48, 394911), (54, 351032), (66, 287208), (72, 263274), (88, 215406), (99, 191472), (108, 175516), (132, 143604), (144, 131637), (176, 107703), (198, 95736), (216, 87758), (264, 71802), (297, 63824), (396, 47868), (432, 43879), (528, 35901), (594, 31912), (792, 23934), (1188, 15956), (1584, 11967), (2376, 7978), (3989, 4752)]