201728220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{55117}}^1$

素因数の和:55190

約数の個数: 48

約数和(自身を含む): 574109088

約数和(自身を除く): 372380868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 55117, 110234, 165351, 220468, 275585, 330702, 551170, 661404, 826755, 1102340, 1653510, 3307020, 3362137, 6724274, 10086411, 13448548, 16810685, 20172822, 33621370, 40345644, 50432055, 67242740, 100864110, 201728220]

約数ペア:

[(1, 201728220), (2, 100864110), (3, 67242740), (4, 50432055), (5, 40345644), (6, 33621370), (10, 20172822), (12, 16810685), (15, 13448548), (20, 10086411), (30, 6724274), (60, 3362137), (61, 3307020), (122, 1653510), (183, 1102340), (244, 826755), (305, 661404), (366, 551170), (610, 330702), (732, 275585), (915, 220468), (1220, 165351), (1830, 110234), (3660, 55117)]