20874480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7907}}^1$

素因数の和:7934

約数の個数: 80

約数和(自身を含む): 70602624

約数和(自身を除く): 49728144

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7907, 15814, 23721, 31628, 39535, 47442, 63256, 79070, 86977, 94884, 118605, 126512, 158140, 173954, 189768, 237210, 260931, 316280, 347908, 379536, 434885, 474420, 521862, 632560, 695816, 869770, 948840, 1043724, 1304655, 1391632, 1739540, 1897680, 2087448, 2609310, 3479080, 4174896, 5218620, 6958160, 10437240, 20874480]

約数ペア:

[(1, 20874480), (2, 10437240), (3, 6958160), (4, 5218620), (5, 4174896), (6, 3479080), (8, 2609310), (10, 2087448), (11, 1897680), (12, 1739540), (15, 1391632), (16, 1304655), (20, 1043724), (22, 948840), (24, 869770), (30, 695816), (33, 632560), (40, 521862), (44, 474420), (48, 434885), (55, 379536), (60, 347908), (66, 316280), (80, 260931), (88, 237210), (110, 189768), (120, 173954), (132, 158140), (165, 126512), (176, 118605), (220, 94884), (240, 86977), (264, 79070), (330, 63256), (440, 47442), (528, 39535), (660, 31628), (880, 23721), (1320, 15814), (2640, 7907)]