161408000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:145

約数の個数: 176

約数和(自身を含む): 438123504

約数和(自身を除く): 276715504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 97, 100, 104, 125, 128, 130, 160, 194, 200, 208, 250, 256, 260, 320, 325, 388, 400, 416, 485, 500, 512, 520, 640, 650, 776, 800, 832, 970, 1000, 1024, 1040, 1261, 1280, 1300, 1552, 1600, 1625, 1664, 1940, 2000, 2080, 2425, 2522, 2560, 2600, 3104, 3200, 3250, 3328, 3880, 4000, 4160, 4850, 5044, 5120, 5200, 6208, 6305, 6400, 6500, 6656, 7760, 8000, 8320, 9700, 10088, 10400, 12125, 12416, 12610, 12800, 13000, 13312, 15520, 16000, 16640, 19400, 20176, 20800, 24250, 24832, 25220, 25600, 26000, 31040, 31525, 32000, 33280, 38800, 40352, 41600, 48500, 49664, 50440, 52000, 62080, 63050, 64000, 66560, 77600, 80704, 83200, 97000, 99328, 100880, 104000, 124160, 126100, 128000, 155200, 157625, 161408, 166400, 194000, 201760, 208000, 248320, 252200, 310400, 315250, 322816, 332800, 388000, 403520, 416000, 496640, 504400, 620800, 630500, 645632, 776000, 807040, 832000, 1008800, 1241600, 1261000, 1291264, 1552000, 1614080, 1664000, 2017600, 2483200, 2522000, 3104000, 3228160, 4035200, 5044000, 6208000, 6456320, 8070400, 10088000, 12416000, 16140800, 20176000, 32281600, 40352000, 80704000, 161408000]

約数ペア:

[(1, 161408000), (2, 80704000), (4, 40352000), (5, 32281600), (8, 20176000), (10, 16140800), (13, 12416000), (16, 10088000), (20, 8070400), (25, 6456320), (26, 6208000), (32, 5044000), (40, 4035200), (50, 3228160), (52, 3104000), (64, 2522000), (65, 2483200), (80, 2017600), (97, 1664000), (100, 1614080), (104, 1552000), (125, 1291264), (128, 1261000), (130, 1241600), (160, 1008800), (194, 832000), (200, 807040), (208, 776000), (250, 645632), (256, 630500), (260, 620800), (320, 504400), (325, 496640), (388, 416000), (400, 403520), (416, 388000), (485, 332800), (500, 322816), (512, 315250), (520, 310400), (640, 252200), (650, 248320), (776, 208000), (800, 201760), (832, 194000), (970, 166400), (1000, 161408), (1024, 157625), (1040, 155200), (1261, 128000), (1280, 126100), (1300, 124160), (1552, 104000), (1600, 100880), (1625, 99328), (1664, 97000), (1940, 83200), (2000, 80704), (2080, 77600), (2425, 66560), (2522, 64000), (2560, 63050), (2600, 62080), (3104, 52000), (3200, 50440), (3250, 49664), (3328, 48500), (3880, 41600), (4000, 40352), (4160, 38800), (4850, 33280), (5044, 32000), (5120, 31525), (5200, 31040), (6208, 26000), (6305, 25600), (6400, 25220), (6500, 24832), (6656, 24250), (7760, 20800), (8000, 20176), (8320, 19400), (9700, 16640), (10088, 16000), (10400, 15520), (12125, 13312), (12416, 13000), (12610, 12800)]