19967910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:749

約数の個数: 64

約数和(自身を含む): 51245568

約数和(自身を除く): 31277658

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 69, 86, 115, 129, 138, 215, 230, 258, 345, 430, 645, 673, 690, 989, 1290, 1346, 1978, 2019, 2967, 3365, 4038, 4945, 5934, 6730, 9890, 10095, 14835, 15479, 20190, 28939, 29670, 30958, 46437, 57878, 77395, 86817, 92874, 144695, 154790, 173634, 232185, 289390, 434085, 464370, 665597, 868170, 1331194, 1996791, 3327985, 3993582, 6655970, 9983955, 19967910]

約数ペア:

[(1, 19967910), (2, 9983955), (3, 6655970), (5, 3993582), (6, 3327985), (10, 1996791), (15, 1331194), (23, 868170), (30, 665597), (43, 464370), (46, 434085), (69, 289390), (86, 232185), (115, 173634), (129, 154790), (138, 144695), (215, 92874), (230, 86817), (258, 77395), (345, 57878), (430, 46437), (645, 30958), (673, 29670), (690, 28939), (989, 20190), (1290, 15479), (1346, 14835), (1978, 10095), (2019, 9890), (2967, 6730), (3365, 5934), (4038, 4945)]