20198370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 51404544

約数和(自身を除く): 31206174

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 73, 115, 138, 146, 219, 230, 345, 365, 401, 438, 690, 730, 802, 1095, 1203, 1679, 2005, 2190, 2406, 3358, 4010, 5037, 6015, 8395, 9223, 10074, 12030, 16790, 18446, 25185, 27669, 29273, 46115, 50370, 55338, 58546, 87819, 92230, 138345, 146365, 175638, 276690, 292730, 439095, 673279, 878190, 1346558, 2019837, 3366395, 4039674, 6732790, 10099185, 20198370]

約数ペア:

[(1, 20198370), (2, 10099185), (3, 6732790), (5, 4039674), (6, 3366395), (10, 2019837), (15, 1346558), (23, 878190), (30, 673279), (46, 439095), (69, 292730), (73, 276690), (115, 175638), (138, 146365), (146, 138345), (219, 92230), (230, 87819), (345, 58546), (365, 55338), (401, 50370), (438, 46115), (690, 29273), (730, 27669), (802, 25185), (1095, 18446), (1203, 16790), (1679, 12030), (2005, 10074), (2190, 9223), (2406, 8395), (3358, 6015), (4010, 5037)]