1331218620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{21191}}^1$

素因数の和:21555

約数の個数: 72

約数和(自身を含む): 4049791200

約数和(自身を除く): 2718572580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 349, 698, 1047, 1396, 1745, 2094, 3141, 3490, 4188, 5235, 6282, 6980, 10470, 12564, 15705, 20940, 21191, 31410, 42382, 62820, 63573, 84764, 105955, 127146, 190719, 211910, 254292, 317865, 381438, 423820, 635730, 762876, 953595, 1271460, 1907190, 3814380, 7395659, 14791318, 22186977, 29582636, 36978295, 44373954, 66560931, 73956590, 88747908, 110934885, 133121862, 147913180, 221869770, 266243724, 332804655, 443739540, 665609310, 1331218620]

約数ペア:

[(1, 1331218620), (2, 665609310), (3, 443739540), (4, 332804655), (5, 266243724), (6, 221869770), (9, 147913180), (10, 133121862), (12, 110934885), (15, 88747908), (18, 73956590), (20, 66560931), (30, 44373954), (36, 36978295), (45, 29582636), (60, 22186977), (90, 14791318), (180, 7395659), (349, 3814380), (698, 1907190), (1047, 1271460), (1396, 953595), (1745, 762876), (2094, 635730), (3141, 423820), (3490, 381438), (4188, 317865), (5235, 254292), (6282, 211910), (6980, 190719), (10470, 127146), (12564, 105955), (15705, 84764), (20940, 63573), (21191, 62820), (31410, 42382)]