128783340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{571}}^1$

素因数の和:772

約数の個数: 144

約数和(自身を含む): 449729280

約数和(自身を除く): 320945940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 179, 180, 210, 252, 315, 358, 420, 537, 571, 630, 716, 895, 1074, 1142, 1253, 1260, 1611, 1713, 1790, 2148, 2284, 2506, 2685, 2855, 3222, 3426, 3580, 3759, 3997, 5012, 5139, 5370, 5710, 6265, 6444, 6852, 7518, 7994, 8055, 8565, 10278, 10740, 11277, 11420, 11991, 12530, 15036, 15988, 16110, 17130, 18795, 19985, 20556, 22554, 23982, 25060, 25695, 32220, 34260, 35973, 37590, 39970, 45108, 47964, 51390, 56385, 59955, 71946, 75180, 79940, 102209, 102780, 112770, 119910, 143892, 179865, 204418, 225540, 239820, 306627, 359730, 408836, 511045, 613254, 715463, 719460, 919881, 1022090, 1226508, 1430926, 1533135, 1839762, 2044180, 2146389, 2861852, 3066270, 3577315, 3679524, 4292778, 4599405, 6132540, 6439167, 7154630, 8585556, 9198810, 10731945, 12878334, 14309260, 18397620, 21463890, 25756668, 32195835, 42927780, 64391670, 128783340]

約数ペア:

[(1, 128783340), (2, 64391670), (3, 42927780), (4, 32195835), (5, 25756668), (6, 21463890), (7, 18397620), (9, 14309260), (10, 12878334), (12, 10731945), (14, 9198810), (15, 8585556), (18, 7154630), (20, 6439167), (21, 6132540), (28, 4599405), (30, 4292778), (35, 3679524), (36, 3577315), (42, 3066270), (45, 2861852), (60, 2146389), (63, 2044180), (70, 1839762), (84, 1533135), (90, 1430926), (105, 1226508), (126, 1022090), (140, 919881), (179, 719460), (180, 715463), (210, 613254), (252, 511045), (315, 408836), (358, 359730), (420, 306627), (537, 239820), (571, 225540), (630, 204418), (716, 179865), (895, 143892), (1074, 119910), (1142, 112770), (1253, 102780), (1260, 102209), (1611, 79940), (1713, 75180), (1790, 71946), (2148, 59955), (2284, 56385), (2506, 51390), (2685, 47964), (2855, 45108), (3222, 39970), (3426, 37590), (3580, 35973), (3759, 34260), (3997, 32220), (5012, 25695), (5139, 25060), (5370, 23982), (5710, 22554), (6265, 20556), (6444, 19985), (6852, 18795), (7518, 17130), (7994, 16110), (8055, 15988), (8565, 15036), (10278, 12530), (10740, 11991), (11277, 11420)]