256942620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129769}}^1$

素因数の和:129795

約数の個数: 72

約数和(自身を含む): 850253040

約数和(自身を除く): 593310420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 129769, 259538, 389307, 519076, 648845, 778614, 1167921, 1297690, 1427459, 1557228, 1946535, 2335842, 2595380, 2854918, 3893070, 4282377, 4671684, 5709836, 5839605, 7137295, 7786140, 8564754, 11679210, 12847131, 14274590, 17129508, 21411885, 23358420, 25694262, 28549180, 42823770, 51388524, 64235655, 85647540, 128471310, 256942620]

約数ペア:

[(1, 256942620), (2, 128471310), (3, 85647540), (4, 64235655), (5, 51388524), (6, 42823770), (9, 28549180), (10, 25694262), (11, 23358420), (12, 21411885), (15, 17129508), (18, 14274590), (20, 12847131), (22, 11679210), (30, 8564754), (33, 7786140), (36, 7137295), (44, 5839605), (45, 5709836), (55, 4671684), (60, 4282377), (66, 3893070), (90, 2854918), (99, 2595380), (110, 2335842), (132, 1946535), (165, 1557228), (180, 1427459), (198, 1297690), (220, 1167921), (330, 778614), (396, 648845), (495, 519076), (660, 389307), (990, 259538), (1980, 129769)]