128687280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31541}}^1$

素因数の和:31574

約数の個数: 80

約数和(自身を含む): 422410464

約数和(自身を除く): 293723184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 31541, 63082, 94623, 126164, 157705, 189246, 252328, 315410, 378492, 473115, 504656, 536197, 630820, 756984, 946230, 1072394, 1261640, 1513968, 1608591, 1892460, 2144788, 2523280, 2680985, 3217182, 3784920, 4289576, 5361970, 6434364, 7569840, 8042955, 8579152, 10723940, 12868728, 16085910, 21447880, 25737456, 32171820, 42895760, 64343640, 128687280]

約数ペア:

[(1, 128687280), (2, 64343640), (3, 42895760), (4, 32171820), (5, 25737456), (6, 21447880), (8, 16085910), (10, 12868728), (12, 10723940), (15, 8579152), (16, 8042955), (17, 7569840), (20, 6434364), (24, 5361970), (30, 4289576), (34, 3784920), (40, 3217182), (48, 2680985), (51, 2523280), (60, 2144788), (68, 1892460), (80, 1608591), (85, 1513968), (102, 1261640), (120, 1072394), (136, 946230), (170, 756984), (204, 630820), (240, 536197), (255, 504656), (272, 473115), (340, 378492), (408, 315410), (510, 252328), (680, 189246), (816, 157705), (1020, 126164), (1360, 94623), (2040, 63082), (4080, 31541)]