66719440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26903}}^1$

素因数の和:26947

約数の個数: 40

約数和(自身を含む): 160132608

約数和(自身を除く): 93413168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26903, 53806, 107612, 134515, 215224, 269030, 430448, 538060, 833993, 1076120, 1667986, 2152240, 3335972, 4169965, 6671944, 8339930, 13343888, 16679860, 33359720, 66719440]

約数ペア:

[(1, 66719440), (2, 33359720), (4, 16679860), (5, 13343888), (8, 8339930), (10, 6671944), (16, 4169965), (20, 3335972), (31, 2152240), (40, 1667986), (62, 1076120), (80, 833993), (124, 538060), (155, 430448), (248, 269030), (310, 215224), (496, 134515), (620, 107612), (1240, 53806), (2480, 26903)]