18688470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21481}}^1$

素因数の和:21520

約数の個数: 32

約数和(自身を含む): 46401120

約数和(自身を除く): 27712650

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 21481, 42962, 64443, 107405, 128886, 214810, 322215, 622949, 644430, 1245898, 1868847, 3114745, 3737694, 6229490, 9344235, 18688470]

約数ペア:

[(1, 18688470), (2, 9344235), (3, 6229490), (5, 3737694), (6, 3114745), (10, 1868847), (15, 1245898), (29, 644430), (30, 622949), (58, 322215), (87, 214810), (145, 128886), (174, 107405), (290, 64443), (435, 42962), (870, 21481)]