159840100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{587}}^1$

素因数の和:997

約数の個数: 72

約数和(自身を含む): 398099520

約数和(自身を除く): 238259420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 389, 587, 700, 778, 1174, 1556, 1945, 2348, 2723, 2935, 3890, 4109, 5446, 5870, 7780, 8218, 9725, 10892, 11740, 13615, 14675, 16436, 19450, 20545, 27230, 29350, 38900, 41090, 54460, 58700, 68075, 82180, 102725, 136150, 205450, 228343, 272300, 410900, 456686, 913372, 1141715, 1598401, 2283430, 3196802, 4566860, 5708575, 6393604, 7992005, 11417150, 15984010, 22834300, 31968020, 39960025, 79920050, 159840100]

約数ペア:

[(1, 159840100), (2, 79920050), (4, 39960025), (5, 31968020), (7, 22834300), (10, 15984010), (14, 11417150), (20, 7992005), (25, 6393604), (28, 5708575), (35, 4566860), (50, 3196802), (70, 2283430), (100, 1598401), (140, 1141715), (175, 913372), (350, 456686), (389, 410900), (587, 272300), (700, 228343), (778, 205450), (1174, 136150), (1556, 102725), (1945, 82180), (2348, 68075), (2723, 58700), (2935, 54460), (3890, 41090), (4109, 38900), (5446, 29350), (5870, 27230), (7780, 20545), (8218, 19450), (9725, 16436), (10892, 14675), (11740, 13615)]