73161875

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 40

約数和(自身を含む): 98780880

約数和(自身を除く): 25619005

約数列:

[1, 5, 19, 25, 61, 95, 101, 125, 305, 475, 505, 625, 1159, 1525, 1919, 2375, 2525, 5795, 6161, 7625, 9595, 11875, 12625, 28975, 30805, 38125, 47975, 63125, 117059, 144875, 154025, 239875, 585295, 724375, 770125, 1199375, 2926475, 3850625, 14632375, 73161875]

約数ペア:

[(1, 73161875), (5, 14632375), (19, 3850625), (25, 2926475), (61, 1199375), (95, 770125), (101, 724375), (125, 585295), (305, 239875), (475, 154025), (505, 144875), (625, 117059), (1159, 63125), (1525, 47975), (1919, 38125), (2375, 30805), (2525, 28975), (5795, 12625), (6161, 11875), (7625, 9595)]