491770890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{420317}}^1$

素因数の和:420343

約数の個数: 48

約数和(自身を含む): 1376961768

約数和(自身を除く): 885190878

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 420317, 840634, 1260951, 2101585, 2521902, 3782853, 4203170, 5464121, 6304755, 7565706, 10928242, 12609510, 16392363, 18914265, 27320605, 32784726, 37828530, 49177089, 54641210, 81961815, 98354178, 163923630, 245885445, 491770890]

約数ペア:

[(1, 491770890), (2, 245885445), (3, 163923630), (5, 98354178), (6, 81961815), (9, 54641210), (10, 49177089), (13, 37828530), (15, 32784726), (18, 27320605), (26, 18914265), (30, 16392363), (39, 12609510), (45, 10928242), (65, 7565706), (78, 6304755), (90, 5464121), (117, 4203170), (130, 3782853), (195, 2521902), (234, 2101585), (390, 1260951), (585, 840634), (1170, 420317)]