51681960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 192

約数和(自身を含む): 189596160

約数和(自身を除く): 137914200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 55, 60, 62, 66, 72, 88, 90, 93, 99, 110, 120, 124, 132, 155, 165, 180, 186, 198, 220, 248, 264, 279, 310, 330, 341, 360, 372, 396, 421, 440, 465, 495, 558, 620, 660, 682, 744, 792, 842, 930, 990, 1023, 1116, 1240, 1263, 1320, 1364, 1395, 1684, 1705, 1860, 1980, 2046, 2105, 2232, 2526, 2728, 2790, 3069, 3368, 3410, 3720, 3789, 3960, 4092, 4210, 4631, 5052, 5115, 5580, 6138, 6315, 6820, 7578, 8184, 8420, 9262, 10104, 10230, 11160, 12276, 12630, 13051, 13640, 13893, 15156, 15345, 16840, 18524, 18945, 20460, 23155, 24552, 25260, 26102, 27786, 30312, 30690, 37048, 37890, 39153, 40920, 41679, 46310, 50520, 52204, 55572, 61380, 65255, 69465, 75780, 78306, 83358, 92620, 104408, 111144, 117459, 122760, 130510, 138930, 143561, 151560, 156612, 166716, 185240, 195765, 208395, 234918, 261020, 277860, 287122, 313224, 333432, 391530, 416790, 430683, 469836, 522040, 555720, 574244, 587295, 717805, 783060, 833580, 861366, 939672, 1148488, 1174590, 1292049, 1435610, 1566120, 1667160, 1722732, 2153415, 2349180, 2584098, 2871220, 3445464, 4306830, 4698360, 5168196, 5742440, 6460245, 8613660, 10336392, 12920490, 17227320, 25840980, 51681960]

約数ペア:

[(1, 51681960), (2, 25840980), (3, 17227320), (4, 12920490), (5, 10336392), (6, 8613660), (8, 6460245), (9, 5742440), (10, 5168196), (11, 4698360), (12, 4306830), (15, 3445464), (18, 2871220), (20, 2584098), (22, 2349180), (24, 2153415), (30, 1722732), (31, 1667160), (33, 1566120), (36, 1435610), (40, 1292049), (44, 1174590), (45, 1148488), (55, 939672), (60, 861366), (62, 833580), (66, 783060), (72, 717805), (88, 587295), (90, 574244), (93, 555720), (99, 522040), (110, 469836), (120, 430683), (124, 416790), (132, 391530), (155, 333432), (165, 313224), (180, 287122), (186, 277860), (198, 261020), (220, 234918), (248, 208395), (264, 195765), (279, 185240), (310, 166716), (330, 156612), (341, 151560), (360, 143561), (372, 138930), (396, 130510), (421, 122760), (440, 117459), (465, 111144), (495, 104408), (558, 92620), (620, 83358), (660, 78306), (682, 75780), (744, 69465), (792, 65255), (842, 61380), (930, 55572), (990, 52204), (1023, 50520), (1116, 46310), (1240, 41679), (1263, 40920), (1320, 39153), (1364, 37890), (1395, 37048), (1684, 30690), (1705, 30312), (1860, 27786), (1980, 26102), (2046, 25260), (2105, 24552), (2232, 23155), (2526, 20460), (2728, 18945), (2790, 18524), (3069, 16840), (3368, 15345), (3410, 15156), (3720, 13893), (3789, 13640), (3960, 13051), (4092, 12630), (4210, 12276), (4631, 11160), (5052, 10230), (5115, 10104), (5580, 9262), (6138, 8420), (6315, 8184), (6820, 7578)]