20174888125

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{557}}^1$

素因数の和:1088

約数の個数: 80

約数和(自身を含む): 30624397056

約数和(自身を除く): 10449508931

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 425, 487, 557, 595, 625, 875, 2125, 2435, 2785, 2975, 3409, 3899, 4375, 8279, 9469, 10625, 12175, 13925, 14875, 17045, 19495, 41395, 47345, 57953, 60875, 66283, 69625, 74375, 85225, 97475, 206975, 236725, 271259, 289765, 304375, 331415, 348125, 426125, 487375, 1034875, 1183625, 1356295, 1448825, 1657075, 1898813, 2130625, 2436875, 4611403, 5174375, 5918125, 6781475, 7244125, 8285375, 9494065, 23057015, 32279821, 33907375, 36220625, 41426875, 47470325, 115285075, 161399105, 169536875, 237351625, 576425375, 806995525, 1186758125, 2882126875, 4034977625, 20174888125]

約数ペア:

[(1, 20174888125), (5, 4034977625), (7, 2882126875), (17, 1186758125), (25, 806995525), (35, 576425375), (85, 237351625), (119, 169536875), (125, 161399105), (175, 115285075), (425, 47470325), (487, 41426875), (557, 36220625), (595, 33907375), (625, 32279821), (875, 23057015), (2125, 9494065), (2435, 8285375), (2785, 7244125), (2975, 6781475), (3409, 5918125), (3899, 5174375), (4375, 4611403), (8279, 2436875), (9469, 2130625), (10625, 1898813), (12175, 1657075), (13925, 1448825), (14875, 1356295), (17045, 1183625), (19495, 1034875), (41395, 487375), (47345, 426125), (57953, 348125), (60875, 331415), (66283, 304375), (69625, 289765), (74375, 271259), (85225, 236725), (97475, 206975)]