18929890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 42071040

約数和(自身を除く): 23141150

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 43, 70, 86, 95, 133, 190, 215, 266, 301, 331, 430, 602, 662, 665, 817, 1330, 1505, 1634, 1655, 2317, 3010, 3310, 4085, 4634, 5719, 6289, 8170, 11438, 11585, 12578, 14233, 23170, 28466, 28595, 31445, 44023, 57190, 62890, 71165, 88046, 99631, 142330, 199262, 220115, 270427, 440230, 498155, 540854, 996310, 1352135, 1892989, 2704270, 3785978, 9464945, 18929890]

約数ペア:

[(1, 18929890), (2, 9464945), (5, 3785978), (7, 2704270), (10, 1892989), (14, 1352135), (19, 996310), (35, 540854), (38, 498155), (43, 440230), (70, 270427), (86, 220115), (95, 199262), (133, 142330), (190, 99631), (215, 88046), (266, 71165), (301, 62890), (331, 57190), (430, 44023), (602, 31445), (662, 28595), (665, 28466), (817, 23170), (1330, 14233), (1505, 12578), (1634, 11585), (1655, 11438), (2317, 8170), (3010, 6289), (3310, 5719), (4085, 4634)]