28381020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 82978560

約数和(自身を除く): 54597540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 83, 123, 139, 164, 166, 205, 246, 249, 278, 332, 410, 415, 417, 492, 498, 556, 615, 695, 820, 830, 834, 996, 1230, 1245, 1390, 1660, 1668, 2085, 2460, 2490, 2780, 3403, 4170, 4980, 5699, 6806, 8340, 10209, 11398, 11537, 13612, 17015, 17097, 20418, 22796, 23074, 28495, 34030, 34194, 34611, 40836, 46148, 51045, 56990, 57685, 68060, 68388, 69222, 85485, 102090, 113980, 115370, 138444, 170970, 173055, 204180, 230740, 341940, 346110, 473017, 692220, 946034, 1419051, 1892068, 2365085, 2838102, 4730170, 5676204, 7095255, 9460340, 14190510, 28381020]

約数ペア:

[(1, 28381020), (2, 14190510), (3, 9460340), (4, 7095255), (5, 5676204), (6, 4730170), (10, 2838102), (12, 2365085), (15, 1892068), (20, 1419051), (30, 946034), (41, 692220), (60, 473017), (82, 346110), (83, 341940), (123, 230740), (139, 204180), (164, 173055), (166, 170970), (205, 138444), (246, 115370), (249, 113980), (278, 102090), (332, 85485), (410, 69222), (415, 68388), (417, 68060), (492, 57685), (498, 56990), (556, 51045), (615, 46148), (695, 40836), (820, 34611), (830, 34194), (834, 34030), (996, 28495), (1230, 23074), (1245, 22796), (1390, 20418), (1660, 17097), (1668, 17015), (2085, 13612), (2460, 11537), (2490, 11398), (2780, 10209), (3403, 8340), (4170, 6806), (4980, 5699)]