30909840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9936

約数の個数: 80

約数和(自身を含む): 103201728

約数和(自身を除く): 72291888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9907, 19814, 29721, 39628, 49535, 59442, 79256, 99070, 118884, 128791, 148605, 158512, 198140, 237768, 257582, 297210, 386373, 396280, 475536, 515164, 594420, 643955, 772746, 792560, 1030328, 1188840, 1287910, 1545492, 1931865, 2060656, 2377680, 2575820, 3090984, 3863730, 5151640, 6181968, 7727460, 10303280, 15454920, 30909840]

約数ペア:

[(1, 30909840), (2, 15454920), (3, 10303280), (4, 7727460), (5, 6181968), (6, 5151640), (8, 3863730), (10, 3090984), (12, 2575820), (13, 2377680), (15, 2060656), (16, 1931865), (20, 1545492), (24, 1287910), (26, 1188840), (30, 1030328), (39, 792560), (40, 772746), (48, 643955), (52, 594420), (60, 515164), (65, 475536), (78, 396280), (80, 386373), (104, 297210), (120, 257582), (130, 237768), (156, 198140), (195, 158512), (208, 148605), (240, 128791), (260, 118884), (312, 99070), (390, 79256), (520, 59442), (624, 49535), (780, 39628), (1040, 29721), (1560, 19814), (3120, 9907)]