20580780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31183}}^1$

素因数の和:31206

約数の個数: 48

約数和(自身を含む): 62866944

約数和(自身を除く): 42286164

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31183, 62366, 93549, 124732, 155915, 187098, 311830, 343013, 374196, 467745, 623660, 686026, 935490, 1029039, 1372052, 1715065, 1870980, 2058078, 3430130, 4116156, 5145195, 6860260, 10290390, 20580780]

約数ペア:

[(1, 20580780), (2, 10290390), (3, 6860260), (4, 5145195), (5, 4116156), (6, 3430130), (10, 2058078), (11, 1870980), (12, 1715065), (15, 1372052), (20, 1029039), (22, 935490), (30, 686026), (33, 623660), (44, 467745), (55, 374196), (60, 343013), (66, 311830), (110, 187098), (132, 155915), (165, 124732), (220, 93549), (330, 62366), (660, 31183)]