321199360

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{509}}^1$

素因数の和:576

約数の個数: 144

約数和(自身を含む): 844376400

約数和(自身を除く): 523177040

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, 340, 464, 493, 509, 544, 580, 640, 680, 928, 986, 1018, 1088, 1160, 1280, 1360, 1856, 1972, 2036, 2176, 2320, 2465, 2545, 2720, 3712, 3944, 4072, 4352, 4640, 4930, 5090, 5440, 7424, 7888, 8144, 8653, 9280, 9860, 10180, 10880, 14761, 15776, 16288, 17306, 18560, 19720, 20360, 21760, 29522, 31552, 32576, 34612, 37120, 39440, 40720, 43265, 59044, 63104, 65152, 69224, 73805, 78880, 81440, 86530, 118088, 126208, 130304, 138448, 147610, 157760, 162880, 173060, 236176, 250937, 276896, 295220, 315520, 325760, 346120, 472352, 501874, 553792, 590440, 631040, 651520, 692240, 944704, 1003748, 1107584, 1180880, 1254685, 1384480, 1889408, 2007496, 2215168, 2361760, 2509370, 2768960, 3778816, 4014992, 4723520, 5018740, 5537920, 8029984, 9447040, 10037480, 11075840, 16059968, 18894080, 20074960, 32119936, 40149920, 64239872, 80299840, 160599680, 321199360]

約数ペア:

[(1, 321199360), (2, 160599680), (4, 80299840), (5, 64239872), (8, 40149920), (10, 32119936), (16, 20074960), (17, 18894080), (20, 16059968), (29, 11075840), (32, 10037480), (34, 9447040), (40, 8029984), (58, 5537920), (64, 5018740), (68, 4723520), (80, 4014992), (85, 3778816), (116, 2768960), (128, 2509370), (136, 2361760), (145, 2215168), (160, 2007496), (170, 1889408), (232, 1384480), (256, 1254685), (272, 1180880), (290, 1107584), (320, 1003748), (340, 944704), (464, 692240), (493, 651520), (509, 631040), (544, 590440), (580, 553792), (640, 501874), (680, 472352), (928, 346120), (986, 325760), (1018, 315520), (1088, 295220), (1160, 276896), (1280, 250937), (1360, 236176), (1856, 173060), (1972, 162880), (2036, 157760), (2176, 147610), (2320, 138448), (2465, 130304), (2545, 126208), (2720, 118088), (3712, 86530), (3944, 81440), (4072, 78880), (4352, 73805), (4640, 69224), (4930, 65152), (5090, 63104), (5440, 59044), (7424, 43265), (7888, 40720), (8144, 39440), (8653, 37120), (9280, 34612), (9860, 32576), (10180, 31552), (10880, 29522), (14761, 21760), (15776, 20360), (16288, 19720), (17306, 18560)]