27921960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{641}}^1$

素因数の和:680

約数の個数: 144

約数和(自身を含む): 99901620

約数和(自身を除く): 71979660

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, 72, 88, 90, 99, 110, 120, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 440, 484, 495, 605, 641, 660, 726, 792, 968, 990, 1089, 1210, 1282, 1320, 1452, 1815, 1923, 1980, 2178, 2420, 2564, 2904, 3205, 3630, 3846, 3960, 4356, 4840, 5128, 5445, 5769, 6410, 7051, 7260, 7692, 8712, 9615, 10890, 11538, 12820, 14102, 14520, 15384, 19230, 21153, 21780, 23076, 25640, 28204, 28845, 35255, 38460, 42306, 43560, 46152, 56408, 57690, 63459, 70510, 76920, 77561, 84612, 105765, 115380, 126918, 141020, 155122, 169224, 211530, 230760, 232683, 253836, 282040, 310244, 317295, 387805, 423060, 465366, 507672, 620488, 634590, 698049, 775610, 846120, 930732, 1163415, 1269180, 1396098, 1551220, 1861464, 2326830, 2538360, 2792196, 3102440, 3490245, 4653660, 5584392, 6980490, 9307320, 13960980, 27921960]

約数ペア:

[(1, 27921960), (2, 13960980), (3, 9307320), (4, 6980490), (5, 5584392), (6, 4653660), (8, 3490245), (9, 3102440), (10, 2792196), (11, 2538360), (12, 2326830), (15, 1861464), (18, 1551220), (20, 1396098), (22, 1269180), (24, 1163415), (30, 930732), (33, 846120), (36, 775610), (40, 698049), (44, 634590), (45, 620488), (55, 507672), (60, 465366), (66, 423060), (72, 387805), (88, 317295), (90, 310244), (99, 282040), (110, 253836), (120, 232683), (121, 230760), (132, 211530), (165, 169224), (180, 155122), (198, 141020), (220, 126918), (242, 115380), (264, 105765), (330, 84612), (360, 77561), (363, 76920), (396, 70510), (440, 63459), (484, 57690), (495, 56408), (605, 46152), (641, 43560), (660, 42306), (726, 38460), (792, 35255), (968, 28845), (990, 28204), (1089, 25640), (1210, 23076), (1282, 21780), (1320, 21153), (1452, 19230), (1815, 15384), (1923, 14520), (1980, 14102), (2178, 12820), (2420, 11538), (2564, 10890), (2904, 9615), (3205, 8712), (3630, 7692), (3846, 7260), (3960, 7051), (4356, 6410), (4840, 5769), (5128, 5445)]