28807610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 31067590

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 107, 109, 130, 190, 214, 218, 247, 494, 535, 545, 1070, 1090, 1235, 1391, 1417, 2033, 2071, 2470, 2782, 2834, 4066, 4142, 6955, 7085, 10165, 10355, 11663, 13910, 14170, 20330, 20710, 23326, 26429, 26923, 52858, 53846, 58315, 116630, 132145, 134615, 151619, 221597, 264290, 269230, 303238, 443194, 758095, 1107985, 1516190, 2215970, 2880761, 5761522, 14403805, 28807610]

約数ペア:

[(1, 28807610), (2, 14403805), (5, 5761522), (10, 2880761), (13, 2215970), (19, 1516190), (26, 1107985), (38, 758095), (65, 443194), (95, 303238), (107, 269230), (109, 264290), (130, 221597), (190, 151619), (214, 134615), (218, 132145), (247, 116630), (494, 58315), (535, 53846), (545, 52858), (1070, 26923), (1090, 26429), (1235, 23326), (1391, 20710), (1417, 20330), (2033, 14170), (2071, 13910), (2470, 11663), (2782, 10355), (2834, 10165), (4066, 7085), (4142, 6955)]