27919980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 94348800

約数和(自身を除く): 66428820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 59, 60, 66, 90, 99, 110, 118, 132, 165, 177, 180, 198, 220, 236, 239, 295, 330, 354, 396, 478, 495, 531, 590, 649, 660, 708, 717, 885, 956, 990, 1062, 1180, 1195, 1298, 1434, 1770, 1947, 1980, 2124, 2151, 2390, 2596, 2629, 2655, 2868, 3245, 3540, 3585, 3894, 4302, 4780, 5258, 5310, 5841, 6490, 7170, 7788, 7887, 8604, 9735, 10516, 10620, 10755, 11682, 12980, 13145, 14101, 14340, 15774, 19470, 21510, 23364, 23661, 26290, 28202, 29205, 31548, 38940, 39435, 42303, 43020, 47322, 52580, 56404, 58410, 70505, 78870, 84606, 94644, 116820, 118305, 126909, 141010, 155111, 157740, 169212, 211515, 236610, 253818, 282020, 310222, 423030, 465333, 473220, 507636, 620444, 634545, 775555, 846060, 930666, 1269090, 1395999, 1551110, 1861332, 2326665, 2538180, 2791998, 3102220, 4653330, 5583996, 6979995, 9306660, 13959990, 27919980]

約数ペア:

[(1, 27919980), (2, 13959990), (3, 9306660), (4, 6979995), (5, 5583996), (6, 4653330), (9, 3102220), (10, 2791998), (11, 2538180), (12, 2326665), (15, 1861332), (18, 1551110), (20, 1395999), (22, 1269090), (30, 930666), (33, 846060), (36, 775555), (44, 634545), (45, 620444), (55, 507636), (59, 473220), (60, 465333), (66, 423030), (90, 310222), (99, 282020), (110, 253818), (118, 236610), (132, 211515), (165, 169212), (177, 157740), (180, 155111), (198, 141010), (220, 126909), (236, 118305), (239, 116820), (295, 94644), (330, 84606), (354, 78870), (396, 70505), (478, 58410), (495, 56404), (531, 52580), (590, 47322), (649, 43020), (660, 42303), (708, 39435), (717, 38940), (885, 31548), (956, 29205), (990, 28202), (1062, 26290), (1180, 23661), (1195, 23364), (1298, 21510), (1434, 19470), (1770, 15774), (1947, 14340), (1980, 14101), (2124, 13145), (2151, 12980), (2390, 11682), (2596, 10755), (2629, 10620), (2655, 10516), (2868, 9735), (3245, 8604), (3540, 7887), (3585, 7788), (3894, 7170), (4302, 6490), (4780, 5841), (5258, 5310)]