2015172980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{12647}}^1$

素因数の和:12944

約数の個数: 48

約数和(自身を含む): 4385719296

約数和(自身を除く): 2370546316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 257, 310, 514, 620, 1028, 1285, 2570, 5140, 7967, 12647, 15934, 25294, 31868, 39835, 50588, 63235, 79670, 126470, 159340, 252940, 392057, 784114, 1568228, 1960285, 3250279, 3920570, 6500558, 7841140, 13001116, 16251395, 32502790, 65005580, 100758649, 201517298, 403034596, 503793245, 1007586490, 2015172980]

約数ペア:

[(1, 2015172980), (2, 1007586490), (4, 503793245), (5, 403034596), (10, 201517298), (20, 100758649), (31, 65005580), (62, 32502790), (124, 16251395), (155, 13001116), (257, 7841140), (310, 6500558), (514, 3920570), (620, 3250279), (1028, 1960285), (1285, 1568228), (2570, 784114), (5140, 392057), (7967, 252940), (12647, 159340), (15934, 126470), (25294, 79670), (31868, 63235), (39835, 50588)]