78531420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 250699680

約数和(自身を除く): 172168260

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 29, 30, 33, 44, 55, 58, 60, 66, 87, 110, 116, 121, 132, 145, 165, 174, 220, 242, 290, 319, 330, 348, 363, 373, 435, 484, 580, 605, 638, 660, 726, 746, 870, 957, 1119, 1210, 1276, 1452, 1492, 1595, 1740, 1815, 1865, 1914, 2238, 2420, 3190, 3509, 3630, 3730, 3828, 4103, 4476, 4785, 5595, 6380, 7018, 7260, 7460, 8206, 9570, 10527, 10817, 11190, 12309, 14036, 16412, 17545, 19140, 20515, 21054, 21634, 22380, 24618, 32451, 35090, 41030, 42108, 43268, 45133, 49236, 52635, 54085, 61545, 64902, 70180, 82060, 90266, 105270, 108170, 118987, 123090, 129804, 135399, 162255, 180532, 210540, 216340, 225665, 237974, 246180, 270798, 324510, 356961, 451330, 475948, 541596, 594935, 649020, 676995, 713922, 902660, 1189870, 1308857, 1353990, 1427844, 1784805, 2379740, 2617714, 2707980, 3569610, 3926571, 5235428, 6544285, 7139220, 7853142, 13088570, 15706284, 19632855, 26177140, 39265710, 78531420]

約数ペア:

[(1, 78531420), (2, 39265710), (3, 26177140), (4, 19632855), (5, 15706284), (6, 13088570), (10, 7853142), (11, 7139220), (12, 6544285), (15, 5235428), (20, 3926571), (22, 3569610), (29, 2707980), (30, 2617714), (33, 2379740), (44, 1784805), (55, 1427844), (58, 1353990), (60, 1308857), (66, 1189870), (87, 902660), (110, 713922), (116, 676995), (121, 649020), (132, 594935), (145, 541596), (165, 475948), (174, 451330), (220, 356961), (242, 324510), (290, 270798), (319, 246180), (330, 237974), (348, 225665), (363, 216340), (373, 210540), (435, 180532), (484, 162255), (580, 135399), (605, 129804), (638, 123090), (660, 118987), (726, 108170), (746, 105270), (870, 90266), (957, 82060), (1119, 70180), (1210, 64902), (1276, 61545), (1452, 54085), (1492, 52635), (1595, 49236), (1740, 45133), (1815, 43268), (1865, 42108), (1914, 41030), (2238, 35090), (2420, 32451), (3190, 24618), (3509, 22380), (3630, 21634), (3730, 21054), (3828, 20515), (4103, 19140), (4476, 17545), (4785, 16412), (5595, 14036), (6380, 12309), (7018, 11190), (7260, 10817), (7460, 10527), (8206, 9570)]