18350780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 47416320

約数和(自身を除く): 29065540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 41, 46, 70, 82, 92, 115, 139, 140, 161, 164, 205, 230, 278, 287, 322, 410, 460, 556, 574, 644, 695, 805, 820, 943, 973, 1148, 1390, 1435, 1610, 1886, 1946, 2780, 2870, 3197, 3220, 3772, 3892, 4715, 4865, 5699, 5740, 6394, 6601, 9430, 9730, 11398, 12788, 13202, 15985, 18860, 19460, 22379, 22796, 26404, 28495, 31970, 33005, 39893, 44758, 56990, 63940, 66010, 79786, 89516, 111895, 113980, 131077, 132020, 159572, 199465, 223790, 262154, 398930, 447580, 524308, 655385, 797860, 917539, 1310770, 1835078, 2621540, 3670156, 4587695, 9175390, 18350780]

約数ペア:

[(1, 18350780), (2, 9175390), (4, 4587695), (5, 3670156), (7, 2621540), (10, 1835078), (14, 1310770), (20, 917539), (23, 797860), (28, 655385), (35, 524308), (41, 447580), (46, 398930), (70, 262154), (82, 223790), (92, 199465), (115, 159572), (139, 132020), (140, 131077), (161, 113980), (164, 111895), (205, 89516), (230, 79786), (278, 66010), (287, 63940), (322, 56990), (410, 44758), (460, 39893), (556, 33005), (574, 31970), (644, 28495), (695, 26404), (805, 22796), (820, 22379), (943, 19460), (973, 18860), (1148, 15985), (1390, 13202), (1435, 12788), (1610, 11398), (1886, 9730), (1946, 9430), (2780, 6601), (2870, 6394), (3197, 5740), (3220, 5699), (3772, 4865), (3892, 4715)]