163521280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:382

約数の個数: 144

約数和(自身を含む): 436794624

約数和(自身を除く): 273273344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 317, 320, 403, 416, 496, 520, 620, 634, 640, 806, 832, 992, 1040, 1240, 1268, 1280, 1585, 1612, 1664, 1984, 2015, 2080, 2480, 2536, 3170, 3224, 3328, 3968, 4030, 4121, 4160, 4960, 5072, 6340, 6448, 7936, 8060, 8242, 8320, 9827, 9920, 10144, 12680, 12896, 16120, 16484, 16640, 19654, 19840, 20288, 20605, 25360, 25792, 32240, 32968, 39308, 39680, 40576, 41210, 49135, 50720, 51584, 64480, 65936, 78616, 81152, 82420, 98270, 101440, 103168, 127751, 128960, 131872, 157232, 164840, 196540, 202880, 255502, 257920, 263744, 314464, 329680, 393080, 405760, 511004, 515840, 527488, 628928, 638755, 659360, 786160, 1022008, 1054976, 1257856, 1277510, 1318720, 1572320, 2044016, 2515712, 2555020, 2637440, 3144640, 4088032, 5110040, 5274880, 6289280, 8176064, 10220080, 12578560, 16352128, 20440160, 32704256, 40880320, 81760640, 163521280]

約数ペア:

[(1, 163521280), (2, 81760640), (4, 40880320), (5, 32704256), (8, 20440160), (10, 16352128), (13, 12578560), (16, 10220080), (20, 8176064), (26, 6289280), (31, 5274880), (32, 5110040), (40, 4088032), (52, 3144640), (62, 2637440), (64, 2555020), (65, 2515712), (80, 2044016), (104, 1572320), (124, 1318720), (128, 1277510), (130, 1257856), (155, 1054976), (160, 1022008), (208, 786160), (248, 659360), (256, 638755), (260, 628928), (310, 527488), (317, 515840), (320, 511004), (403, 405760), (416, 393080), (496, 329680), (520, 314464), (620, 263744), (634, 257920), (640, 255502), (806, 202880), (832, 196540), (992, 164840), (1040, 157232), (1240, 131872), (1268, 128960), (1280, 127751), (1585, 103168), (1612, 101440), (1664, 98270), (1984, 82420), (2015, 81152), (2080, 78616), (2480, 65936), (2536, 64480), (3170, 51584), (3224, 50720), (3328, 49135), (3968, 41210), (4030, 40576), (4121, 39680), (4160, 39308), (4960, 32968), (5072, 32240), (6340, 25792), (6448, 25360), (7936, 20605), (8060, 20288), (8242, 19840), (8320, 19654), (9827, 16640), (9920, 16484), (10144, 16120), (12680, 12896)]