18931440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:199

約数の個数: 160

約数和(自身を含む): 65567232

約数和(自身を除く): 46635792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 71, 80, 88, 101, 110, 120, 132, 142, 165, 176, 202, 213, 220, 240, 264, 284, 303, 330, 355, 404, 426, 440, 505, 528, 568, 606, 660, 710, 781, 808, 852, 880, 1010, 1065, 1111, 1136, 1212, 1320, 1420, 1515, 1562, 1616, 1704, 2020, 2130, 2222, 2343, 2424, 2640, 2840, 3030, 3124, 3333, 3408, 3905, 4040, 4260, 4444, 4686, 4848, 5555, 5680, 6060, 6248, 6666, 7171, 7810, 8080, 8520, 8888, 9372, 11110, 11715, 12120, 12496, 13332, 14342, 15620, 16665, 17040, 17776, 18744, 21513, 22220, 23430, 24240, 26664, 28684, 31240, 33330, 35855, 37488, 43026, 44440, 46860, 53328, 57368, 62480, 66660, 71710, 78881, 86052, 88880, 93720, 107565, 114736, 133320, 143420, 157762, 172104, 187440, 215130, 236643, 266640, 286840, 315524, 344208, 394405, 430260, 473286, 573680, 631048, 788810, 860520, 946572, 1183215, 1262096, 1577620, 1721040, 1893144, 2366430, 3155240, 3786288, 4732860, 6310480, 9465720, 18931440]

約数ペア:

[(1, 18931440), (2, 9465720), (3, 6310480), (4, 4732860), (5, 3786288), (6, 3155240), (8, 2366430), (10, 1893144), (11, 1721040), (12, 1577620), (15, 1262096), (16, 1183215), (20, 946572), (22, 860520), (24, 788810), (30, 631048), (33, 573680), (40, 473286), (44, 430260), (48, 394405), (55, 344208), (60, 315524), (66, 286840), (71, 266640), (80, 236643), (88, 215130), (101, 187440), (110, 172104), (120, 157762), (132, 143420), (142, 133320), (165, 114736), (176, 107565), (202, 93720), (213, 88880), (220, 86052), (240, 78881), (264, 71710), (284, 66660), (303, 62480), (330, 57368), (355, 53328), (404, 46860), (426, 44440), (440, 43026), (505, 37488), (528, 35855), (568, 33330), (606, 31240), (660, 28684), (710, 26664), (781, 24240), (808, 23430), (852, 22220), (880, 21513), (1010, 18744), (1065, 17776), (1111, 17040), (1136, 16665), (1212, 15620), (1320, 14342), (1420, 13332), (1515, 12496), (1562, 12120), (1616, 11715), (1704, 11110), (2020, 9372), (2130, 8888), (2222, 8520), (2343, 8080), (2424, 7810), (2640, 7171), (2840, 6666), (3030, 6248), (3124, 6060), (3333, 5680), (3408, 5555), (3905, 4848), (4040, 4686), (4260, 4444)]