19945800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{1583}}^1$

素因数の和:1612

約数の個数: 144

約数和(自身を含む): 76602240

約数和(自身を除く): 56656440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1583, 1800, 2100, 2520, 3150, 3166, 4200, 4749, 6300, 6332, 7915, 9498, 11081, 12600, 12664, 14247, 15830, 18996, 22162, 23745, 28494, 31660, 33243, 37992, 39575, 44324, 47490, 55405, 56988, 63320, 66486, 71235, 79150, 88648, 94980, 99729, 110810, 113976, 118725, 132972, 142470, 158300, 166215, 189960, 199458, 221620, 237450, 265944, 277025, 284940, 316600, 332430, 356175, 398916, 443240, 474900, 498645, 554050, 569880, 664860, 712350, 797832, 831075, 949800, 997290, 1108100, 1329720, 1424700, 1662150, 1994580, 2216200, 2493225, 2849400, 3324300, 3989160, 4986450, 6648600, 9972900, 19945800]

約数ペア:

[(1, 19945800), (2, 9972900), (3, 6648600), (4, 4986450), (5, 3989160), (6, 3324300), (7, 2849400), (8, 2493225), (9, 2216200), (10, 1994580), (12, 1662150), (14, 1424700), (15, 1329720), (18, 1108100), (20, 997290), (21, 949800), (24, 831075), (25, 797832), (28, 712350), (30, 664860), (35, 569880), (36, 554050), (40, 498645), (42, 474900), (45, 443240), (50, 398916), (56, 356175), (60, 332430), (63, 316600), (70, 284940), (72, 277025), (75, 265944), (84, 237450), (90, 221620), (100, 199458), (105, 189960), (120, 166215), (126, 158300), (140, 142470), (150, 132972), (168, 118725), (175, 113976), (180, 110810), (200, 99729), (210, 94980), (225, 88648), (252, 79150), (280, 71235), (300, 66486), (315, 63320), (350, 56988), (360, 55405), (420, 47490), (450, 44324), (504, 39575), (525, 37992), (600, 33243), (630, 31660), (700, 28494), (840, 23745), (900, 22162), (1050, 18996), (1260, 15830), (1400, 14247), (1575, 12664), (1583, 12600), (1800, 11081), (2100, 9498), (2520, 7915), (3150, 6332), (3166, 6300), (4200, 4749)]