644679280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:216

約数の個数: 240

約数和(自身を含む): 1854925920

約数和(自身を除く): 1210246640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 49, 53, 56, 58, 70, 80, 98, 106, 107, 112, 116, 140, 145, 196, 203, 212, 214, 232, 245, 265, 280, 290, 371, 392, 406, 424, 428, 464, 490, 530, 535, 560, 580, 742, 749, 784, 812, 848, 856, 980, 1015, 1060, 1070, 1160, 1421, 1484, 1498, 1537, 1624, 1712, 1855, 1960, 2030, 2120, 2140, 2320, 2597, 2842, 2968, 2996, 3074, 3103, 3248, 3710, 3745, 3920, 4060, 4240, 4280, 5194, 5243, 5671, 5684, 5936, 5992, 6148, 6206, 7105, 7420, 7490, 7685, 8120, 8560, 10388, 10486, 10759, 11342, 11368, 11984, 12296, 12412, 12985, 14210, 14840, 14980, 15370, 15515, 16240, 20776, 20972, 21518, 21721, 22684, 22736, 24592, 24824, 25970, 26215, 28355, 28420, 29680, 29960, 30740, 31030, 39697, 41552, 41944, 43036, 43442, 45368, 49648, 51940, 52430, 53795, 56710, 56840, 59920, 61480, 62060, 75313, 79394, 83888, 86072, 86884, 90736, 103880, 104860, 107590, 108605, 113420, 113680, 122960, 124120, 150626, 152047, 158788, 164459, 172144, 173768, 198485, 207760, 209720, 215180, 217210, 226840, 248240, 277879, 301252, 304094, 317576, 328918, 347536, 376565, 396970, 419440, 430360, 434420, 453680, 555758, 602504, 608188, 635152, 657836, 753130, 760235, 793940, 822295, 860720, 868840, 1111516, 1151213, 1205008, 1216376, 1315672, 1389395, 1506260, 1520470, 1587880, 1644590, 1737680, 2223032, 2302426, 2432752, 2631344, 2778790, 3012520, 3040940, 3175760, 3289180, 4446064, 4604852, 5557580, 5756065, 6025040, 6081880, 6578360, 8058491, 9209704, 11115160, 11512130, 12163760, 13156720, 16116982, 18419408, 22230320, 23024260, 32233964, 40292455, 46048520, 64467928, 80584910, 92097040, 128935856, 161169820, 322339640, 644679280]

約数ペア:

[(1, 644679280), (2, 322339640), (4, 161169820), (5, 128935856), (7, 92097040), (8, 80584910), (10, 64467928), (14, 46048520), (16, 40292455), (20, 32233964), (28, 23024260), (29, 22230320), (35, 18419408), (40, 16116982), (49, 13156720), (53, 12163760), (56, 11512130), (58, 11115160), (70, 9209704), (80, 8058491), (98, 6578360), (106, 6081880), (107, 6025040), (112, 5756065), (116, 5557580), (140, 4604852), (145, 4446064), (196, 3289180), (203, 3175760), (212, 3040940), (214, 3012520), (232, 2778790), (245, 2631344), (265, 2432752), (280, 2302426), (290, 2223032), (371, 1737680), (392, 1644590), (406, 1587880), (424, 1520470), (428, 1506260), (464, 1389395), (490, 1315672), (530, 1216376), (535, 1205008), (560, 1151213), (580, 1111516), (742, 868840), (749, 860720), (784, 822295), (812, 793940), (848, 760235), (856, 753130), (980, 657836), (1015, 635152), (1060, 608188), (1070, 602504), (1160, 555758), (1421, 453680), (1484, 434420), (1498, 430360), (1537, 419440), (1624, 396970), (1712, 376565), (1855, 347536), (1960, 328918), (2030, 317576), (2120, 304094), (2140, 301252), (2320, 277879), (2597, 248240), (2842, 226840), (2968, 217210), (2996, 215180), (3074, 209720), (3103, 207760), (3248, 198485), (3710, 173768), (3745, 172144), (3920, 164459), (4060, 158788), (4240, 152047), (4280, 150626), (5194, 124120), (5243, 122960), (5671, 113680), (5684, 113420), (5936, 108605), (5992, 107590), (6148, 104860), (6206, 103880), (7105, 90736), (7420, 86884), (7490, 86072), (7685, 83888), (8120, 79394), (8560, 75313), (10388, 62060), (10486, 61480), (10759, 59920), (11342, 56840), (11368, 56710), (11984, 53795), (12296, 52430), (12412, 51940), (12985, 49648), (14210, 45368), (14840, 43442), (14980, 43036), (15370, 41944), (15515, 41552), (16240, 39697), (20776, 31030), (20972, 30740), (21518, 29960), (21721, 29680), (22684, 28420), (22736, 28355), (24592, 26215), (24824, 25970)]