208874240

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 549672480

約数和(自身を除く): 340798240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 116, 128, 136, 145, 160, 170, 232, 256, 272, 290, 320, 331, 340, 464, 493, 544, 580, 640, 662, 680, 928, 986, 1088, 1160, 1280, 1324, 1360, 1655, 1856, 1972, 2176, 2320, 2465, 2648, 2720, 3310, 3712, 3944, 4352, 4640, 4930, 5296, 5440, 5627, 6620, 7424, 7888, 9280, 9599, 9860, 10592, 10880, 11254, 13240, 15776, 18560, 19198, 19720, 21184, 21760, 22508, 26480, 28135, 31552, 37120, 38396, 39440, 42368, 45016, 47995, 52960, 56270, 63104, 76792, 78880, 84736, 90032, 95990, 105920, 112540, 126208, 153584, 157760, 163183, 180064, 191980, 211840, 225080, 307168, 315520, 326366, 360128, 383960, 423680, 450160, 614336, 631040, 652732, 720256, 767920, 815915, 900320, 1228672, 1305464, 1440512, 1535840, 1631830, 1800640, 2457344, 2610928, 3071680, 3263660, 3601280, 5221856, 6143360, 6527320, 7202560, 10443712, 12286720, 13054640, 20887424, 26109280, 41774848, 52218560, 104437120, 208874240]

約数ペア:

[(1, 208874240), (2, 104437120), (4, 52218560), (5, 41774848), (8, 26109280), (10, 20887424), (16, 13054640), (17, 12286720), (20, 10443712), (29, 7202560), (32, 6527320), (34, 6143360), (40, 5221856), (58, 3601280), (64, 3263660), (68, 3071680), (80, 2610928), (85, 2457344), (116, 1800640), (128, 1631830), (136, 1535840), (145, 1440512), (160, 1305464), (170, 1228672), (232, 900320), (256, 815915), (272, 767920), (290, 720256), (320, 652732), (331, 631040), (340, 614336), (464, 450160), (493, 423680), (544, 383960), (580, 360128), (640, 326366), (662, 315520), (680, 307168), (928, 225080), (986, 211840), (1088, 191980), (1160, 180064), (1280, 163183), (1324, 157760), (1360, 153584), (1655, 126208), (1856, 112540), (1972, 105920), (2176, 95990), (2320, 90032), (2465, 84736), (2648, 78880), (2720, 76792), (3310, 63104), (3712, 56270), (3944, 52960), (4352, 47995), (4640, 45016), (4930, 42368), (5296, 39440), (5440, 38396), (5627, 37120), (6620, 31552), (7424, 28135), (7888, 26480), (9280, 22508), (9599, 21760), (9860, 21184), (10592, 19720), (10880, 19198), (11254, 18560), (13240, 15776)]