201561990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{137117}}^1$

素因数の和:137141

約数の個数: 48

約数和(自身を含む): 562732272

約数和(自身を除く): 361170282

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 137117, 274234, 411351, 685585, 822702, 959819, 1371170, 1919638, 2056755, 2879457, 4113510, 4799095, 5758914, 6718733, 9598190, 13437466, 14397285, 20156199, 28794570, 33593665, 40312398, 67187330, 100780995, 201561990]

約数ペア:

[(1, 201561990), (2, 100780995), (3, 67187330), (5, 40312398), (6, 33593665), (7, 28794570), (10, 20156199), (14, 14397285), (15, 13437466), (21, 9598190), (30, 6718733), (35, 5758914), (42, 4799095), (49, 4113510), (70, 2879457), (98, 2056755), (105, 1919638), (147, 1371170), (210, 959819), (245, 822702), (294, 685585), (490, 411351), (735, 274234), (1470, 137117)]