157142020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{22907}}^1$

素因数の和:22937

約数の個数: 48

約数和(自身を含む): 384854400

約数和(自身を除く): 227712380

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, 22907, 45814, 91628, 114535, 160349, 229070, 320698, 458140, 641396, 801745, 1122443, 1603490, 2244886, 3206980, 4489772, 5612215, 7857101, 11224430, 15714202, 22448860, 31428404, 39285505, 78571010, 157142020]

約数ペア:

[(1, 157142020), (2, 78571010), (4, 39285505), (5, 31428404), (7, 22448860), (10, 15714202), (14, 11224430), (20, 7857101), (28, 5612215), (35, 4489772), (49, 3206980), (70, 2244886), (98, 1603490), (140, 1122443), (196, 801745), (245, 641396), (343, 458140), (490, 320698), (686, 229070), (980, 160349), (1372, 114535), (1715, 91628), (3430, 45814), (6860, 22907)]