19962360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 71786520

約数和(自身を除く): 51824160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 71, 72, 88, 90, 99, 110, 120, 132, 142, 165, 180, 198, 213, 220, 264, 284, 330, 355, 360, 396, 426, 440, 495, 568, 639, 660, 710, 781, 792, 852, 990, 1065, 1278, 1320, 1420, 1562, 1704, 1980, 2130, 2343, 2556, 2840, 3124, 3195, 3905, 3960, 4260, 4686, 5041, 5112, 6248, 6390, 7029, 7810, 8520, 9372, 10082, 11715, 12780, 14058, 15123, 15620, 18744, 20164, 23430, 25205, 25560, 28116, 30246, 31240, 35145, 40328, 45369, 46860, 50410, 55451, 56232, 60492, 70290, 75615, 90738, 93720, 100820, 110902, 120984, 140580, 151230, 166353, 181476, 201640, 221804, 226845, 277255, 281160, 302460, 332706, 362952, 443608, 453690, 499059, 554510, 604920, 665412, 831765, 907380, 998118, 1109020, 1330824, 1663530, 1814760, 1996236, 2218040, 2495295, 3327060, 3992472, 4990590, 6654120, 9981180, 19962360]

約数ペア:

[(1, 19962360), (2, 9981180), (3, 6654120), (4, 4990590), (5, 3992472), (6, 3327060), (8, 2495295), (9, 2218040), (10, 1996236), (11, 1814760), (12, 1663530), (15, 1330824), (18, 1109020), (20, 998118), (22, 907380), (24, 831765), (30, 665412), (33, 604920), (36, 554510), (40, 499059), (44, 453690), (45, 443608), (55, 362952), (60, 332706), (66, 302460), (71, 281160), (72, 277255), (88, 226845), (90, 221804), (99, 201640), (110, 181476), (120, 166353), (132, 151230), (142, 140580), (165, 120984), (180, 110902), (198, 100820), (213, 93720), (220, 90738), (264, 75615), (284, 70290), (330, 60492), (355, 56232), (360, 55451), (396, 50410), (426, 46860), (440, 45369), (495, 40328), (568, 35145), (639, 31240), (660, 30246), (710, 28116), (781, 25560), (792, 25205), (852, 23430), (990, 20164), (1065, 18744), (1278, 15620), (1320, 15123), (1420, 14058), (1562, 12780), (1704, 11715), (1980, 10082), (2130, 9372), (2343, 8520), (2556, 7810), (2840, 7029), (3124, 6390), (3195, 6248), (3905, 5112), (3960, 5041), (4260, 4686)]