19903800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{677}}^1$

素因数の和:710

約数の個数: 144

約数和(自身を含む): 71881560

約数和(自身を除く): 51977760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 677, 700, 735, 840, 980, 1050, 1176, 1225, 1354, 1400, 1470, 1960, 2031, 2100, 2450, 2708, 2940, 3385, 3675, 4062, 4200, 4739, 4900, 5416, 5880, 6770, 7350, 8124, 9478, 9800, 10155, 13540, 14217, 14700, 16248, 16925, 18956, 20310, 23695, 27080, 28434, 29400, 33173, 33850, 37912, 40620, 47390, 50775, 56868, 66346, 67700, 71085, 81240, 94780, 99519, 101550, 113736, 118475, 132692, 135400, 142170, 165865, 189560, 199038, 203100, 236950, 265384, 284340, 331730, 355425, 398076, 406200, 473900, 497595, 568680, 663460, 710850, 796152, 829325, 947800, 995190, 1326920, 1421700, 1658650, 1990380, 2487975, 2843400, 3317300, 3980760, 4975950, 6634600, 9951900, 19903800]

約数ペア:

[(1, 19903800), (2, 9951900), (3, 6634600), (4, 4975950), (5, 3980760), (6, 3317300), (7, 2843400), (8, 2487975), (10, 1990380), (12, 1658650), (14, 1421700), (15, 1326920), (20, 995190), (21, 947800), (24, 829325), (25, 796152), (28, 710850), (30, 663460), (35, 568680), (40, 497595), (42, 473900), (49, 406200), (50, 398076), (56, 355425), (60, 331730), (70, 284340), (75, 265384), (84, 236950), (98, 203100), (100, 199038), (105, 189560), (120, 165865), (140, 142170), (147, 135400), (150, 132692), (168, 118475), (175, 113736), (196, 101550), (200, 99519), (210, 94780), (245, 81240), (280, 71085), (294, 67700), (300, 66346), (350, 56868), (392, 50775), (420, 47390), (490, 40620), (525, 37912), (588, 33850), (600, 33173), (677, 29400), (700, 28434), (735, 27080), (840, 23695), (980, 20310), (1050, 18956), (1176, 16925), (1225, 16248), (1354, 14700), (1400, 14217), (1470, 13540), (1960, 10155), (2031, 9800), (2100, 9478), (2450, 8124), (2708, 7350), (2940, 6770), (3385, 5880), (3675, 5416), (4062, 4900), (4200, 4739)]