19809465

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 16962375

約数列:

[1, 3, 5, 13, 15, 29, 31, 39, 65, 87, 93, 113, 145, 155, 195, 339, 377, 403, 435, 465, 565, 899, 1131, 1209, 1469, 1695, 1885, 2015, 2697, 3277, 3503, 4407, 4495, 5655, 6045, 7345, 9831, 10509, 11687, 13485, 16385, 17515, 22035, 35061, 42601, 45539, 49155, 52545, 58435, 101587, 127803, 136617, 175305, 213005, 227695, 304761, 507935, 639015, 683085, 1320631, 1523805, 3961893, 6603155, 19809465]

約数ペア:

[(1, 19809465), (3, 6603155), (5, 3961893), (13, 1523805), (15, 1320631), (29, 683085), (31, 639015), (39, 507935), (65, 304761), (87, 227695), (93, 213005), (113, 175305), (145, 136617), (155, 127803), (195, 101587), (339, 58435), (377, 52545), (403, 49155), (435, 45539), (465, 42601), (565, 35061), (899, 22035), (1131, 17515), (1209, 16385), (1469, 13485), (1695, 11687), (1885, 10509), (2015, 9831), (2697, 7345), (3277, 6045), (3503, 5655), (4407, 4495)]