19839120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{241}}^1$

素因数の和:278

約数の個数: 160

約数和(自身を含む): 72019200

約数和(自身を除く): 52180080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 241, 245, 280, 294, 336, 343, 392, 420, 482, 490, 560, 588, 686, 723, 735, 784, 840, 964, 980, 1029, 1176, 1205, 1372, 1446, 1470, 1680, 1687, 1715, 1928, 1960, 2058, 2352, 2410, 2744, 2892, 2940, 3374, 3430, 3615, 3856, 3920, 4116, 4820, 5061, 5145, 5488, 5784, 5880, 6748, 6860, 7230, 8232, 8435, 9640, 10122, 10290, 11568, 11760, 11809, 13496, 13720, 14460, 16464, 16870, 19280, 20244, 20580, 23618, 25305, 26992, 27440, 28920, 33740, 35427, 40488, 41160, 47236, 50610, 57840, 59045, 67480, 70854, 80976, 82320, 82663, 94472, 101220, 118090, 134960, 141708, 165326, 177135, 188944, 202440, 236180, 247989, 283416, 330652, 354270, 404880, 413315, 472360, 495978, 566832, 661304, 708540, 826630, 944720, 991956, 1239945, 1322608, 1417080, 1653260, 1983912, 2479890, 2834160, 3306520, 3967824, 4959780, 6613040, 9919560, 19839120]

約数ペア:

[(1, 19839120), (2, 9919560), (3, 6613040), (4, 4959780), (5, 3967824), (6, 3306520), (7, 2834160), (8, 2479890), (10, 1983912), (12, 1653260), (14, 1417080), (15, 1322608), (16, 1239945), (20, 991956), (21, 944720), (24, 826630), (28, 708540), (30, 661304), (35, 566832), (40, 495978), (42, 472360), (48, 413315), (49, 404880), (56, 354270), (60, 330652), (70, 283416), (80, 247989), (84, 236180), (98, 202440), (105, 188944), (112, 177135), (120, 165326), (140, 141708), (147, 134960), (168, 118090), (196, 101220), (210, 94472), (240, 82663), (241, 82320), (245, 80976), (280, 70854), (294, 67480), (336, 59045), (343, 57840), (392, 50610), (420, 47236), (482, 41160), (490, 40488), (560, 35427), (588, 33740), (686, 28920), (723, 27440), (735, 26992), (784, 25305), (840, 23618), (964, 20580), (980, 20244), (1029, 19280), (1176, 16870), (1205, 16464), (1372, 14460), (1446, 13720), (1470, 13496), (1680, 11809), (1687, 11760), (1715, 11568), (1928, 10290), (1960, 10122), (2058, 9640), (2352, 8435), (2410, 8232), (2744, 7230), (2892, 6860), (2940, 6748), (3374, 5880), (3430, 5784), (3615, 5488), (3856, 5145), (3920, 5061), (4116, 4820)]