19951980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1049}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 56095200

約数和(自身を除く): 36143220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 317, 634, 951, 1049, 1268, 1585, 1902, 2098, 3147, 3170, 3804, 4196, 4755, 5245, 6294, 6340, 9510, 10490, 12588, 15735, 19020, 20980, 31470, 62940, 332533, 665066, 997599, 1330132, 1662665, 1995198, 3325330, 3990396, 4987995, 6650660, 9975990, 19951980]

約数ペア:

[(1, 19951980), (2, 9975990), (3, 6650660), (4, 4987995), (5, 3990396), (6, 3325330), (10, 1995198), (12, 1662665), (15, 1330132), (20, 997599), (30, 665066), (60, 332533), (317, 62940), (634, 31470), (951, 20980), (1049, 19020), (1268, 15735), (1585, 12588), (1902, 10490), (2098, 9510), (3147, 6340), (3170, 6294), (3804, 5245), (4196, 4755)]