20804513475

素因数分解:

$3^1\times 5^2\times {\mathrm{167}}^1\times {\mathrm{571}}^1\times {\mathrm{2909}}^1$

素因数の和:3660

約数の個数: 48

約数和(自身を含む): 34675280640

約数和(自身を除く): 13870767165

約数列:

[1, 3, 5, 15, 25, 75, 167, 501, 571, 835, 1713, 2505, 2855, 2909, 4175, 8565, 8727, 12525, 14275, 14545, 42825, 43635, 72725, 95357, 218175, 286071, 476785, 485803, 1430355, 1457409, 1661039, 2383925, 2429015, 4983117, 7151775, 7287045, 8305195, 12145075, 24915585, 36435225, 41525975, 124577925, 277393513, 832180539, 1386967565, 4160902695, 6934837825, 20804513475]

約数ペア:

[(1, 20804513475), (3, 6934837825), (5, 4160902695), (15, 1386967565), (25, 832180539), (75, 277393513), (167, 124577925), (501, 41525975), (571, 36435225), (835, 24915585), (1713, 12145075), (2505, 8305195), (2855, 7287045), (2909, 7151775), (4175, 4983117), (8565, 2429015), (8727, 2383925), (12525, 1661039), (14275, 1457409), (14545, 1430355), (42825, 485803), (43635, 476785), (72725, 286071), (95357, 218175)]