20944375

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 40

約数和(自身を含む): 28790784

約数和(自身を除く): 7846409

約数列:

[1, 5, 23, 25, 31, 47, 115, 125, 155, 235, 575, 625, 713, 775, 1081, 1175, 1457, 2875, 3565, 3875, 5405, 5875, 7285, 14375, 17825, 19375, 27025, 29375, 33511, 36425, 89125, 135125, 167555, 182125, 445625, 675625, 837775, 910625, 4188875, 20944375]

約数ペア:

[(1, 20944375), (5, 4188875), (23, 910625), (25, 837775), (31, 675625), (47, 445625), (115, 182125), (125, 167555), (155, 135125), (235, 89125), (575, 36425), (625, 33511), (713, 29375), (775, 27025), (1081, 19375), (1175, 17825), (1457, 14375), (2875, 7285), (3565, 5875), (3875, 5405)]