19581800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 53032320

約数和(自身を除く): 33450520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 71, 100, 140, 142, 175, 197, 200, 280, 284, 350, 355, 394, 497, 568, 700, 710, 788, 985, 994, 1379, 1400, 1420, 1576, 1775, 1970, 1988, 2485, 2758, 2840, 3550, 3940, 3976, 4925, 4970, 5516, 6895, 7100, 7880, 9850, 9940, 11032, 12425, 13790, 13987, 14200, 19700, 19880, 24850, 27580, 27974, 34475, 39400, 49700, 55160, 55948, 68950, 69935, 97909, 99400, 111896, 137900, 139870, 195818, 275800, 279740, 349675, 391636, 489545, 559480, 699350, 783272, 979090, 1398700, 1958180, 2447725, 2797400, 3916360, 4895450, 9790900, 19581800]

約数ペア:

[(1, 19581800), (2, 9790900), (4, 4895450), (5, 3916360), (7, 2797400), (8, 2447725), (10, 1958180), (14, 1398700), (20, 979090), (25, 783272), (28, 699350), (35, 559480), (40, 489545), (50, 391636), (56, 349675), (70, 279740), (71, 275800), (100, 195818), (140, 139870), (142, 137900), (175, 111896), (197, 99400), (200, 97909), (280, 69935), (284, 68950), (350, 55948), (355, 55160), (394, 49700), (497, 39400), (568, 34475), (700, 27974), (710, 27580), (788, 24850), (985, 19880), (994, 19700), (1379, 14200), (1400, 13987), (1420, 13790), (1576, 12425), (1775, 11032), (1970, 9940), (1988, 9850), (2485, 7880), (2758, 7100), (2840, 6895), (3550, 5516), (3940, 4970), (3976, 4925)]