431145780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{552751}}^1$

素因数の和:552776

約数の個数: 48

約数和(自身を含む): 1300072704

約数和(自身を除く): 868926924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 552751, 1105502, 1658253, 2211004, 2763755, 3316506, 5527510, 6633012, 7185763, 8291265, 11055020, 14371526, 16582530, 21557289, 28743052, 33165060, 35928815, 43114578, 71857630, 86229156, 107786445, 143715260, 215572890, 431145780]

約数ペア:

[(1, 431145780), (2, 215572890), (3, 143715260), (4, 107786445), (5, 86229156), (6, 71857630), (10, 43114578), (12, 35928815), (13, 33165060), (15, 28743052), (20, 21557289), (26, 16582530), (30, 14371526), (39, 11055020), (52, 8291265), (60, 7185763), (65, 6633012), (78, 5527510), (130, 3316506), (156, 2763755), (195, 2211004), (260, 1658253), (390, 1105502), (780, 552751)]