19953360

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:170

約数の個数: 240

約数和(自身を含む): 79387776

約数和(自身を除く): 59434416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 48, 56, 60, 63, 70, 72, 74, 80, 84, 90, 105, 107, 111, 112, 120, 126, 140, 144, 148, 168, 180, 185, 210, 214, 222, 240, 252, 259, 280, 296, 315, 321, 333, 336, 360, 370, 420, 428, 444, 504, 518, 535, 555, 560, 592, 630, 642, 666, 720, 740, 749, 777, 840, 856, 888, 963, 1008, 1036, 1070, 1110, 1260, 1284, 1295, 1332, 1480, 1498, 1554, 1605, 1665, 1680, 1712, 1776, 1926, 2072, 2140, 2220, 2247, 2331, 2520, 2568, 2590, 2664, 2960, 2996, 3108, 3210, 3330, 3745, 3852, 3885, 3959, 4144, 4280, 4440, 4494, 4662, 4815, 5040, 5136, 5180, 5328, 5992, 6216, 6420, 6660, 6741, 7490, 7704, 7770, 7918, 8560, 8880, 8988, 9324, 9630, 10360, 11235, 11655, 11877, 11984, 12432, 12840, 13320, 13482, 14980, 15408, 15540, 15836, 17976, 18648, 19260, 19795, 20720, 22470, 23310, 23754, 25680, 26640, 26964, 27713, 29960, 31080, 31672, 33705, 35631, 35952, 37296, 38520, 39590, 44940, 46620, 47508, 53928, 55426, 59385, 59920, 62160, 63344, 67410, 71262, 77040, 79180, 83139, 89880, 93240, 95016, 107856, 110852, 118770, 134820, 138565, 142524, 158360, 166278, 178155, 179760, 186480, 190032, 221704, 237540, 249417, 269640, 277130, 285048, 316720, 332556, 356310, 415695, 443408, 475080, 498834, 539280, 554260, 570096, 665112, 712620, 831390, 950160, 997668, 1108520, 1247085, 1330224, 1425240, 1662780, 1995336, 2217040, 2494170, 2850480, 3325560, 3990672, 4988340, 6651120, 9976680, 19953360]

約数ペア:

[(1, 19953360), (2, 9976680), (3, 6651120), (4, 4988340), (5, 3990672), (6, 3325560), (7, 2850480), (8, 2494170), (9, 2217040), (10, 1995336), (12, 1662780), (14, 1425240), (15, 1330224), (16, 1247085), (18, 1108520), (20, 997668), (21, 950160), (24, 831390), (28, 712620), (30, 665112), (35, 570096), (36, 554260), (37, 539280), (40, 498834), (42, 475080), (45, 443408), (48, 415695), (56, 356310), (60, 332556), (63, 316720), (70, 285048), (72, 277130), (74, 269640), (80, 249417), (84, 237540), (90, 221704), (105, 190032), (107, 186480), (111, 179760), (112, 178155), (120, 166278), (126, 158360), (140, 142524), (144, 138565), (148, 134820), (168, 118770), (180, 110852), (185, 107856), (210, 95016), (214, 93240), (222, 89880), (240, 83139), (252, 79180), (259, 77040), (280, 71262), (296, 67410), (315, 63344), (321, 62160), (333, 59920), (336, 59385), (360, 55426), (370, 53928), (420, 47508), (428, 46620), (444, 44940), (504, 39590), (518, 38520), (535, 37296), (555, 35952), (560, 35631), (592, 33705), (630, 31672), (642, 31080), (666, 29960), (720, 27713), (740, 26964), (749, 26640), (777, 25680), (840, 23754), (856, 23310), (888, 22470), (963, 20720), (1008, 19795), (1036, 19260), (1070, 18648), (1110, 17976), (1260, 15836), (1284, 15540), (1295, 15408), (1332, 14980), (1480, 13482), (1498, 13320), (1554, 12840), (1605, 12432), (1665, 11984), (1680, 11877), (1712, 11655), (1776, 11235), (1926, 10360), (2072, 9630), (2140, 9324), (2220, 8988), (2247, 8880), (2331, 8560), (2520, 7918), (2568, 7770), (2590, 7704), (2664, 7490), (2960, 6741), (2996, 6660), (3108, 6420), (3210, 6216), (3330, 5992), (3745, 5328), (3852, 5180), (3885, 5136), (3959, 5040), (4144, 4815), (4280, 4662), (4440, 4494)]