4049980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 9525600

約数和(自身を除く): 5475620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 449, 451, 820, 898, 902, 1796, 1804, 2245, 2255, 4490, 4510, 4939, 8980, 9020, 9878, 18409, 19756, 24695, 36818, 49390, 73636, 92045, 98780, 184090, 202499, 368180, 404998, 809996, 1012495, 2024990, 4049980]

約数ペア:

[(1, 4049980), (2, 2024990), (4, 1012495), (5, 809996), (10, 404998), (11, 368180), (20, 202499), (22, 184090), (41, 98780), (44, 92045), (55, 73636), (82, 49390), (110, 36818), (164, 24695), (205, 19756), (220, 18409), (410, 9878), (449, 9020), (451, 8980), (820, 4939), (898, 4510), (902, 4490), (1796, 2255), (1804, 2245)]