27972700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 70308000

約数和(自身を除く): 42335300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 89, 100, 140, 175, 178, 350, 356, 445, 449, 623, 700, 890, 898, 1246, 1780, 1796, 2225, 2245, 2492, 3115, 3143, 4450, 4490, 6230, 6286, 8900, 8980, 11225, 12460, 12572, 15575, 15715, 22450, 31150, 31430, 39961, 44900, 62300, 62860, 78575, 79922, 157150, 159844, 199805, 279727, 314300, 399610, 559454, 799220, 999025, 1118908, 1398635, 1998050, 2797270, 3996100, 5594540, 6993175, 13986350, 27972700]

約数ペア:

[(1, 27972700), (2, 13986350), (4, 6993175), (5, 5594540), (7, 3996100), (10, 2797270), (14, 1998050), (20, 1398635), (25, 1118908), (28, 999025), (35, 799220), (50, 559454), (70, 399610), (89, 314300), (100, 279727), (140, 199805), (175, 159844), (178, 157150), (350, 79922), (356, 78575), (445, 62860), (449, 62300), (623, 44900), (700, 39961), (890, 31430), (898, 31150), (1246, 22450), (1780, 15715), (1796, 15575), (2225, 12572), (2245, 12460), (2492, 11225), (3115, 8980), (3143, 8900), (4450, 6286), (4490, 6230)]