31211310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{419}}^1$

素因数の和:633

約数の個数: 64

約数和(自身を含む): 81285120

約数和(自身を除く): 50073810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 191, 195, 382, 390, 419, 573, 838, 955, 1146, 1257, 1910, 2095, 2483, 2514, 2865, 4190, 4966, 5447, 5730, 6285, 7449, 10894, 12415, 12570, 14898, 16341, 24830, 27235, 32682, 37245, 54470, 74490, 80029, 81705, 160058, 163410, 240087, 400145, 480174, 800290, 1040377, 1200435, 2080754, 2400870, 3121131, 5201885, 6242262, 10403770, 15605655, 31211310]

約数ペア:

[(1, 31211310), (2, 15605655), (3, 10403770), (5, 6242262), (6, 5201885), (10, 3121131), (13, 2400870), (15, 2080754), (26, 1200435), (30, 1040377), (39, 800290), (65, 480174), (78, 400145), (130, 240087), (191, 163410), (195, 160058), (382, 81705), (390, 80029), (419, 74490), (573, 54470), (838, 37245), (955, 32682), (1146, 27235), (1257, 24830), (1910, 16341), (2095, 14898), (2483, 12570), (2514, 12415), (2865, 10894), (4190, 7449), (4966, 6285), (5447, 5730)]