20193425

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 31069440

約数和(自身を除く): 10876015

約数列:

[1, 5, 7, 23, 25, 29, 35, 115, 145, 161, 173, 175, 203, 575, 667, 725, 805, 865, 1015, 1211, 3335, 3979, 4025, 4325, 4669, 5017, 5075, 6055, 16675, 19895, 23345, 25085, 27853, 30275, 35119, 99475, 115391, 116725, 125425, 139265, 175595, 576955, 696325, 807737, 877975, 2884775, 4038685, 20193425]

約数ペア:

[(1, 20193425), (5, 4038685), (7, 2884775), (23, 877975), (25, 807737), (29, 696325), (35, 576955), (115, 175595), (145, 139265), (161, 125425), (173, 116725), (175, 115391), (203, 99475), (575, 35119), (667, 30275), (725, 27853), (805, 25085), (865, 23345), (1015, 19895), (1211, 16675), (3335, 6055), (3979, 5075), (4025, 5017), (4325, 4669)]