149897860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{21851}}^1$

素因数の和:21881

約数の個数: 48

約数和(自身を含む): 367113600

約数和(自身を除く): 217215740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 21851, 43702, 87404, 109255, 152957, 218510, 305914, 437020, 611828, 764785, 1070699, 1529570, 2141398, 3059140, 4282796, 5353495, 7494893, 10706990, 14989786, 21413980, 29979572, 37474465, 74948930, 149897860]

約数ペア:

[(1, 149897860), (2, 74948930), (4, 37474465), (5, 29979572), (7, 21413980), (10, 14989786), (14, 10706990), (20, 7494893), (28, 5353495), (35, 4282796), (49, 3059140), (70, 2141398), (98, 1529570), (140, 1070699), (196, 764785), (245, 611828), (343, 437020), (490, 305914), (686, 218510), (980, 152957), (1372, 109255), (1715, 87404), (3430, 43702), (6860, 21851)]