25499900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{13421}}^1$

素因数の和:13454

約数の個数: 36

約数和(自身を含む): 58251480

約数和(自身を除く): 32751580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 13421, 26842, 53684, 67105, 134210, 254999, 268420, 335525, 509998, 671050, 1019996, 1274995, 1342100, 2549990, 5099980, 6374975, 12749950, 25499900]

約数ペア:

[(1, 25499900), (2, 12749950), (4, 6374975), (5, 5099980), (10, 2549990), (19, 1342100), (20, 1274995), (25, 1019996), (38, 671050), (50, 509998), (76, 335525), (95, 268420), (100, 254999), (190, 134210), (380, 67105), (475, 53684), (950, 26842), (1900, 13421)]