778357320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{498947}}^1$

素因数の和:498974

約数の個数: 64

約数和(自身を含む): 2514697920

約数和(自身を除く): 1736340600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 498947, 997894, 1496841, 1995788, 2494735, 2993682, 3991576, 4989470, 5987364, 6486311, 7484205, 9978940, 11974728, 12972622, 14968410, 19458933, 19957880, 25945244, 29936820, 32431555, 38917866, 51890488, 59873640, 64863110, 77835732, 97294665, 129726220, 155671464, 194589330, 259452440, 389178660, 778357320]

約数ペア:

[(1, 778357320), (2, 389178660), (3, 259452440), (4, 194589330), (5, 155671464), (6, 129726220), (8, 97294665), (10, 77835732), (12, 64863110), (13, 59873640), (15, 51890488), (20, 38917866), (24, 32431555), (26, 29936820), (30, 25945244), (39, 19957880), (40, 19458933), (52, 14968410), (60, 12972622), (65, 11974728), (78, 9978940), (104, 7484205), (120, 6486311), (130, 5987364), (156, 4989470), (195, 3991576), (260, 2993682), (312, 2494735), (390, 1995788), (520, 1496841), (780, 997894), (1560, 498947)]