19957800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:116

約数の個数: 192

約数和(自身を含む): 67852800

約数和(自身を除く): 47895000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 29, 30, 31, 37, 40, 50, 58, 60, 62, 74, 75, 87, 93, 100, 111, 116, 120, 124, 145, 148, 150, 155, 174, 185, 186, 200, 222, 232, 248, 290, 296, 300, 310, 348, 370, 372, 435, 444, 465, 555, 580, 600, 620, 696, 725, 740, 744, 775, 870, 888, 899, 925, 930, 1073, 1110, 1147, 1160, 1240, 1450, 1480, 1550, 1740, 1798, 1850, 1860, 2146, 2175, 2220, 2294, 2325, 2697, 2775, 2900, 3100, 3219, 3441, 3480, 3596, 3700, 3720, 4292, 4350, 4440, 4495, 4588, 4650, 5365, 5394, 5550, 5735, 5800, 6200, 6438, 6882, 7192, 7400, 8584, 8700, 8990, 9176, 9300, 10730, 10788, 11100, 11470, 12876, 13485, 13764, 16095, 17205, 17400, 17980, 18600, 21460, 21576, 22200, 22475, 22940, 25752, 26825, 26970, 27528, 28675, 32190, 33263, 34410, 35960, 42920, 44950, 45880, 53650, 53940, 57350, 64380, 66526, 67425, 68820, 80475, 86025, 89900, 99789, 107300, 107880, 114700, 128760, 133052, 134850, 137640, 160950, 166315, 172050, 179800, 199578, 214600, 229400, 266104, 269700, 321900, 332630, 344100, 399156, 498945, 539400, 643800, 665260, 688200, 798312, 831575, 997890, 1330520, 1663150, 1995780, 2494725, 3326300, 3991560, 4989450, 6652600, 9978900, 19957800]

約数ペア:

[(1, 19957800), (2, 9978900), (3, 6652600), (4, 4989450), (5, 3991560), (6, 3326300), (8, 2494725), (10, 1995780), (12, 1663150), (15, 1330520), (20, 997890), (24, 831575), (25, 798312), (29, 688200), (30, 665260), (31, 643800), (37, 539400), (40, 498945), (50, 399156), (58, 344100), (60, 332630), (62, 321900), (74, 269700), (75, 266104), (87, 229400), (93, 214600), (100, 199578), (111, 179800), (116, 172050), (120, 166315), (124, 160950), (145, 137640), (148, 134850), (150, 133052), (155, 128760), (174, 114700), (185, 107880), (186, 107300), (200, 99789), (222, 89900), (232, 86025), (248, 80475), (290, 68820), (296, 67425), (300, 66526), (310, 64380), (348, 57350), (370, 53940), (372, 53650), (435, 45880), (444, 44950), (465, 42920), (555, 35960), (580, 34410), (600, 33263), (620, 32190), (696, 28675), (725, 27528), (740, 26970), (744, 26825), (775, 25752), (870, 22940), (888, 22475), (899, 22200), (925, 21576), (930, 21460), (1073, 18600), (1110, 17980), (1147, 17400), (1160, 17205), (1240, 16095), (1450, 13764), (1480, 13485), (1550, 12876), (1740, 11470), (1798, 11100), (1850, 10788), (1860, 10730), (2146, 9300), (2175, 9176), (2220, 8990), (2294, 8700), (2325, 8584), (2697, 7400), (2775, 7192), (2900, 6882), (3100, 6438), (3219, 6200), (3441, 5800), (3480, 5735), (3596, 5550), (3700, 5394), (3720, 5365), (4292, 4650), (4350, 4588), (4440, 4495)]