19711800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 67897440

約数和(自身を除く): 48185640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 47, 50, 60, 72, 75, 90, 94, 100, 120, 141, 150, 180, 188, 200, 225, 233, 235, 282, 300, 360, 376, 423, 450, 466, 470, 564, 600, 699, 705, 846, 900, 932, 940, 1128, 1165, 1175, 1398, 1410, 1692, 1800, 1864, 1880, 2097, 2115, 2330, 2350, 2796, 2820, 3384, 3495, 3525, 4194, 4230, 4660, 4700, 5592, 5640, 5825, 6990, 7050, 8388, 8460, 9320, 9400, 10485, 10575, 10951, 11650, 13980, 14100, 16776, 16920, 17475, 20970, 21150, 21902, 23300, 27960, 28200, 32853, 34950, 41940, 42300, 43804, 46600, 52425, 54755, 65706, 69900, 83880, 84600, 87608, 98559, 104850, 109510, 131412, 139800, 164265, 197118, 209700, 219020, 262824, 273775, 328530, 394236, 419400, 438040, 492795, 547550, 657060, 788472, 821325, 985590, 1095100, 1314120, 1642650, 1971180, 2190200, 2463975, 3285300, 3942360, 4927950, 6570600, 9855900, 19711800]

約数ペア:

[(1, 19711800), (2, 9855900), (3, 6570600), (4, 4927950), (5, 3942360), (6, 3285300), (8, 2463975), (9, 2190200), (10, 1971180), (12, 1642650), (15, 1314120), (18, 1095100), (20, 985590), (24, 821325), (25, 788472), (30, 657060), (36, 547550), (40, 492795), (45, 438040), (47, 419400), (50, 394236), (60, 328530), (72, 273775), (75, 262824), (90, 219020), (94, 209700), (100, 197118), (120, 164265), (141, 139800), (150, 131412), (180, 109510), (188, 104850), (200, 98559), (225, 87608), (233, 84600), (235, 83880), (282, 69900), (300, 65706), (360, 54755), (376, 52425), (423, 46600), (450, 43804), (466, 42300), (470, 41940), (564, 34950), (600, 32853), (699, 28200), (705, 27960), (846, 23300), (900, 21902), (932, 21150), (940, 20970), (1128, 17475), (1165, 16920), (1175, 16776), (1398, 14100), (1410, 13980), (1692, 11650), (1800, 10951), (1864, 10575), (1880, 10485), (2097, 9400), (2115, 9320), (2330, 8460), (2350, 8388), (2796, 7050), (2820, 6990), (3384, 5825), (3495, 5640), (3525, 5592), (4194, 4700), (4230, 4660)]