28461380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 62339760

約数和(自身を除く): 33878380

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 569, 610, 820, 1138, 1220, 2276, 2501, 2845, 5002, 5690, 10004, 11380, 12505, 23329, 25010, 34709, 46658, 50020, 69418, 93316, 116645, 138836, 173545, 233290, 347090, 466580, 694180, 1423069, 2846138, 5692276, 7115345, 14230690, 28461380]

約数ペア:

[(1, 28461380), (2, 14230690), (4, 7115345), (5, 5692276), (10, 2846138), (20, 1423069), (41, 694180), (61, 466580), (82, 347090), (122, 233290), (164, 173545), (205, 138836), (244, 116645), (305, 93316), (410, 69418), (569, 50020), (610, 46658), (820, 34709), (1138, 25010), (1220, 23329), (2276, 12505), (2501, 11380), (2845, 10004), (5002, 5690)]