28474380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 95999904

約数和(自身を除く): 67525524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 73, 90, 99, 110, 132, 146, 165, 180, 197, 198, 219, 220, 292, 330, 365, 394, 396, 438, 495, 591, 657, 660, 730, 788, 803, 876, 985, 990, 1095, 1182, 1314, 1460, 1606, 1773, 1970, 1980, 2167, 2190, 2364, 2409, 2628, 2955, 3212, 3285, 3546, 3940, 4015, 4334, 4380, 4818, 5910, 6501, 6570, 7092, 7227, 8030, 8668, 8865, 9636, 10835, 11820, 12045, 13002, 13140, 14381, 14454, 16060, 17730, 19503, 21670, 24090, 26004, 28762, 28908, 32505, 35460, 36135, 39006, 43143, 43340, 48180, 57524, 65010, 71905, 72270, 78012, 86286, 97515, 129429, 130020, 143810, 144540, 158191, 172572, 195030, 215715, 258858, 287620, 316382, 390060, 431430, 474573, 517716, 632764, 647145, 790955, 862860, 949146, 1294290, 1423719, 1581910, 1898292, 2372865, 2588580, 2847438, 3163820, 4745730, 5694876, 7118595, 9491460, 14237190, 28474380]

約数ペア:

[(1, 28474380), (2, 14237190), (3, 9491460), (4, 7118595), (5, 5694876), (6, 4745730), (9, 3163820), (10, 2847438), (11, 2588580), (12, 2372865), (15, 1898292), (18, 1581910), (20, 1423719), (22, 1294290), (30, 949146), (33, 862860), (36, 790955), (44, 647145), (45, 632764), (55, 517716), (60, 474573), (66, 431430), (73, 390060), (90, 316382), (99, 287620), (110, 258858), (132, 215715), (146, 195030), (165, 172572), (180, 158191), (197, 144540), (198, 143810), (219, 130020), (220, 129429), (292, 97515), (330, 86286), (365, 78012), (394, 72270), (396, 71905), (438, 65010), (495, 57524), (591, 48180), (657, 43340), (660, 43143), (730, 39006), (788, 36135), (803, 35460), (876, 32505), (985, 28908), (990, 28762), (1095, 26004), (1182, 24090), (1314, 21670), (1460, 19503), (1606, 17730), (1773, 16060), (1970, 14454), (1980, 14381), (2167, 13140), (2190, 13002), (2364, 12045), (2409, 11820), (2628, 10835), (2955, 9636), (3212, 8865), (3285, 8668), (3546, 8030), (3940, 7227), (4015, 7092), (4334, 6570), (4380, 6501), (4818, 5910)]