28358260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1565

約数の個数: 72

約数和(自身を含む): 72969120

約数和(自身を除く): 44610860

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1523, 1862, 2660, 3046, 3724, 4655, 6092, 7615, 9310, 10661, 15230, 18620, 21322, 28937, 30460, 42644, 53305, 57874, 74627, 106610, 115748, 144685, 149254, 202559, 213220, 289370, 298508, 373135, 405118, 578740, 746270, 810236, 1012795, 1417913, 1492540, 2025590, 2835826, 4051180, 5671652, 7089565, 14179130, 28358260]

約数ペア:

[(1, 28358260), (2, 14179130), (4, 7089565), (5, 5671652), (7, 4051180), (10, 2835826), (14, 2025590), (19, 1492540), (20, 1417913), (28, 1012795), (35, 810236), (38, 746270), (49, 578740), (70, 405118), (76, 373135), (95, 298508), (98, 289370), (133, 213220), (140, 202559), (190, 149254), (196, 144685), (245, 115748), (266, 106610), (380, 74627), (490, 57874), (532, 53305), (665, 42644), (931, 30460), (980, 28937), (1330, 21322), (1523, 18620), (1862, 15230), (2660, 10661), (3046, 9310), (3724, 7615), (4655, 6092)]