19944990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17047}}^1$

素因数の和:17073

約数の個数: 48

約数和(自身を含む): 55849248

約数和(自身を除く): 35904258

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, 17047, 34094, 51141, 85235, 102282, 153423, 170470, 221611, 255705, 306846, 443222, 511410, 664833, 767115, 1108055, 1329666, 1534230, 1994499, 2216110, 3324165, 3988998, 6648330, 9972495, 19944990]

約数ペア:

[(1, 19944990), (2, 9972495), (3, 6648330), (5, 3988998), (6, 3324165), (9, 2216110), (10, 1994499), (13, 1534230), (15, 1329666), (18, 1108055), (26, 767115), (30, 664833), (39, 511410), (45, 443222), (65, 306846), (78, 255705), (90, 221611), (117, 170470), (130, 153423), (195, 102282), (234, 85235), (390, 51141), (585, 34094), (1170, 17047)]