15996400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 45666720

約数和(自身を除く): 29670320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 35, 40, 50, 56, 58, 70, 80, 100, 112, 116, 140, 145, 175, 197, 200, 203, 232, 280, 290, 350, 394, 400, 406, 464, 560, 580, 700, 725, 788, 812, 985, 1015, 1160, 1379, 1400, 1450, 1576, 1624, 1970, 2030, 2320, 2758, 2800, 2900, 3152, 3248, 3940, 4060, 4925, 5075, 5516, 5713, 5800, 6895, 7880, 8120, 9850, 10150, 11032, 11426, 11600, 13790, 15760, 16240, 19700, 20300, 22064, 22852, 27580, 28565, 34475, 39400, 39991, 40600, 45704, 55160, 57130, 68950, 78800, 79982, 81200, 91408, 110320, 114260, 137900, 142825, 159964, 199955, 228520, 275800, 285650, 319928, 399910, 457040, 551600, 571300, 639856, 799820, 999775, 1142600, 1599640, 1999550, 2285200, 3199280, 3999100, 7998200, 15996400]

約数ペア:

[(1, 15996400), (2, 7998200), (4, 3999100), (5, 3199280), (7, 2285200), (8, 1999550), (10, 1599640), (14, 1142600), (16, 999775), (20, 799820), (25, 639856), (28, 571300), (29, 551600), (35, 457040), (40, 399910), (50, 319928), (56, 285650), (58, 275800), (70, 228520), (80, 199955), (100, 159964), (112, 142825), (116, 137900), (140, 114260), (145, 110320), (175, 91408), (197, 81200), (200, 79982), (203, 78800), (232, 68950), (280, 57130), (290, 55160), (350, 45704), (394, 40600), (400, 39991), (406, 39400), (464, 34475), (560, 28565), (580, 27580), (700, 22852), (725, 22064), (788, 20300), (812, 19700), (985, 16240), (1015, 15760), (1160, 13790), (1379, 11600), (1400, 11426), (1450, 11032), (1576, 10150), (1624, 9850), (1970, 8120), (2030, 7880), (2320, 6895), (2758, 5800), (2800, 5713), (2900, 5516), (3152, 5075), (3248, 4925), (3940, 4060)]