81727740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1039}}^1$

素因数の和:1096

約数の個数: 144

約数和(自身を含む): 272563200

約数和(自身を除く): 190835460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 276, 285, 342, 345, 380, 414, 437, 460, 570, 684, 690, 828, 855, 874, 1035, 1039, 1140, 1311, 1380, 1710, 1748, 2070, 2078, 2185, 2622, 3117, 3420, 3933, 4140, 4156, 4370, 5195, 5244, 6234, 6555, 7866, 8740, 9351, 10390, 12468, 13110, 15585, 15732, 18702, 19665, 19741, 20780, 23897, 26220, 31170, 37404, 39330, 39482, 46755, 47794, 59223, 62340, 71691, 78660, 78964, 93510, 95588, 98705, 118446, 119485, 143382, 177669, 187020, 197410, 215073, 236892, 238970, 286764, 296115, 355338, 358455, 394820, 430146, 454043, 477940, 592230, 710676, 716910, 860292, 888345, 908086, 1075365, 1184460, 1362129, 1433820, 1776690, 1816172, 2150730, 2270215, 2724258, 3553380, 4086387, 4301460, 4540430, 5448516, 6810645, 8172774, 9080860, 13621290, 16345548, 20431935, 27242580, 40863870, 81727740]

約数ペア:

[(1, 81727740), (2, 40863870), (3, 27242580), (4, 20431935), (5, 16345548), (6, 13621290), (9, 9080860), (10, 8172774), (12, 6810645), (15, 5448516), (18, 4540430), (19, 4301460), (20, 4086387), (23, 3553380), (30, 2724258), (36, 2270215), (38, 2150730), (45, 1816172), (46, 1776690), (57, 1433820), (60, 1362129), (69, 1184460), (76, 1075365), (90, 908086), (92, 888345), (95, 860292), (114, 716910), (115, 710676), (138, 592230), (171, 477940), (180, 454043), (190, 430146), (207, 394820), (228, 358455), (230, 355338), (276, 296115), (285, 286764), (342, 238970), (345, 236892), (380, 215073), (414, 197410), (437, 187020), (460, 177669), (570, 143382), (684, 119485), (690, 118446), (828, 98705), (855, 95588), (874, 93510), (1035, 78964), (1039, 78660), (1140, 71691), (1311, 62340), (1380, 59223), (1710, 47794), (1748, 46755), (2070, 39482), (2078, 39330), (2185, 37404), (2622, 31170), (3117, 26220), (3420, 23897), (3933, 20780), (4140, 19741), (4156, 19665), (4370, 18702), (5195, 15732), (5244, 15585), (6234, 13110), (6555, 12468), (7866, 10390), (8740, 9351)]