19976850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:552

約数の個数: 72

約数和(自身を含む): 54317952

約数和(自身を除く): 34341102

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 103, 150, 206, 225, 309, 431, 450, 515, 618, 862, 927, 1030, 1293, 1545, 1854, 2155, 2575, 2586, 3090, 3879, 4310, 4635, 5150, 6465, 7725, 7758, 9270, 10775, 12930, 15450, 19395, 21550, 23175, 32325, 38790, 44393, 46350, 64650, 88786, 96975, 133179, 193950, 221965, 266358, 399537, 443930, 665895, 799074, 1109825, 1331790, 1997685, 2219650, 3329475, 3995370, 6658950, 9988425, 19976850]

約数ペア:

[(1, 19976850), (2, 9988425), (3, 6658950), (5, 3995370), (6, 3329475), (9, 2219650), (10, 1997685), (15, 1331790), (18, 1109825), (25, 799074), (30, 665895), (45, 443930), (50, 399537), (75, 266358), (90, 221965), (103, 193950), (150, 133179), (206, 96975), (225, 88786), (309, 64650), (431, 46350), (450, 44393), (515, 38790), (618, 32325), (862, 23175), (927, 21550), (1030, 19395), (1293, 15450), (1545, 12930), (1854, 10775), (2155, 9270), (2575, 7758), (2586, 7725), (3090, 6465), (3879, 5150), (4310, 4635)]