21739600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 120

約数和(自身を含む): 58121280

約数和(自身を除く): 36381680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 25, 34, 40, 46, 50, 68, 80, 85, 92, 100, 115, 136, 139, 170, 184, 200, 230, 272, 278, 340, 368, 391, 400, 425, 460, 556, 575, 680, 695, 782, 850, 920, 1112, 1150, 1360, 1390, 1564, 1700, 1840, 1955, 2224, 2300, 2363, 2780, 3128, 3197, 3400, 3475, 3910, 4600, 4726, 5560, 6256, 6394, 6800, 6950, 7820, 9200, 9452, 9775, 11120, 11815, 12788, 13900, 15640, 15985, 18904, 19550, 23630, 25576, 27800, 31280, 31970, 37808, 39100, 47260, 51152, 54349, 55600, 59075, 63940, 78200, 79925, 94520, 108698, 118150, 127880, 156400, 159850, 189040, 217396, 236300, 255760, 271745, 319700, 434792, 472600, 543490, 639400, 869584, 945200, 1086980, 1278800, 1358725, 2173960, 2717450, 4347920, 5434900, 10869800, 21739600]

約数ペア:

[(1, 21739600), (2, 10869800), (4, 5434900), (5, 4347920), (8, 2717450), (10, 2173960), (16, 1358725), (17, 1278800), (20, 1086980), (23, 945200), (25, 869584), (34, 639400), (40, 543490), (46, 472600), (50, 434792), (68, 319700), (80, 271745), (85, 255760), (92, 236300), (100, 217396), (115, 189040), (136, 159850), (139, 156400), (170, 127880), (184, 118150), (200, 108698), (230, 94520), (272, 79925), (278, 78200), (340, 63940), (368, 59075), (391, 55600), (400, 54349), (425, 51152), (460, 47260), (556, 39100), (575, 37808), (680, 31970), (695, 31280), (782, 27800), (850, 25576), (920, 23630), (1112, 19550), (1150, 18904), (1360, 15985), (1390, 15640), (1564, 13900), (1700, 12788), (1840, 11815), (1955, 11120), (2224, 9775), (2300, 9452), (2363, 9200), (2780, 7820), (3128, 6950), (3197, 6800), (3400, 6394), (3475, 6256), (3910, 5560), (4600, 4726)]