645632000

素因数分解:

$2^{12}\times 5^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:149

約数の個数: 208

約数和(自身を含む): 1753136112

約数和(自身を除く): 1107504112

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, 2048, 2080, 2425, 2522, 2560, 2600, 3104, 3200, 3250, 3328, 3880, 4000, 4096, 4160, 4850, 5044, 5120, 5200, 6208, 6305, 6400, 6500, 6656, 7760, 8000, 8320, 9700, 10088, 10240, 10400, 12125, 12416, 12610, 12800, 13000, 13312, 15520, 16000, 16640, 19400, 20176, 20480, 20800, 24250, 24832, 25220, 25600, 26000, 26624, 31040, 31525, 32000, 33280, 38800, 40352, 41600, 48500, 49664, 50440, 51200, 52000, 53248, 62080, 63050, 64000, 66560, 77600, 80704, 83200, 97000, 99328, 100880, 102400, 104000, 124160, 126100, 128000, 133120, 155200, 157625, 161408, 166400, 194000, 198656, 201760, 208000, 248320, 252200, 256000, 266240, 310400, 315250, 322816, 332800, 388000, 397312, 403520, 416000, 496640, 504400, 512000, 620800, 630500, 645632, 665600, 776000, 807040, 832000, 993280, 1008800, 1241600, 1261000, 1291264, 1331200, 1552000, 1614080, 1664000, 1986560, 2017600, 2483200, 2522000, 2582528, 3104000, 3228160, 3328000, 4035200, 4966400, 5044000, 5165056, 6208000, 6456320, 6656000, 8070400, 9932800, 10088000, 12416000, 12912640, 16140800, 20176000, 24832000, 25825280, 32281600, 40352000, 49664000, 64563200, 80704000, 129126400, 161408000, 322816000, 645632000]

約数ペア:

[(1, 645632000), (2, 322816000), (4, 161408000), (5, 129126400), (8, 80704000), (10, 64563200), (13, 49664000), (16, 40352000), (20, 32281600), (25, 25825280), (26, 24832000), (32, 20176000), (40, 16140800), (50, 12912640), (52, 12416000), (64, 10088000), (65, 9932800), (80, 8070400), (97, 6656000), (100, 6456320), (104, 6208000), (125, 5165056), (128, 5044000), (130, 4966400), (160, 4035200), (194, 3328000), (200, 3228160), (208, 3104000), (250, 2582528), (256, 2522000), (260, 2483200), (320, 2017600), (325, 1986560), (388, 1664000), (400, 1614080), (416, 1552000), (485, 1331200), (500, 1291264), (512, 1261000), (520, 1241600), (640, 1008800), (650, 993280), (776, 832000), (800, 807040), (832, 776000), (970, 665600), (1000, 645632), (1024, 630500), (1040, 620800), (1261, 512000), (1280, 504400), (1300, 496640), (1552, 416000), (1600, 403520), (1625, 397312), (1664, 388000), (1940, 332800), (2000, 322816), (2048, 315250), (2080, 310400), (2425, 266240), (2522, 256000), (2560, 252200), (2600, 248320), (3104, 208000), (3200, 201760), (3250, 198656), (3328, 194000), (3880, 166400), (4000, 161408), (4096, 157625), (4160, 155200), (4850, 133120), (5044, 128000), (5120, 126100), (5200, 124160), (6208, 104000), (6305, 102400), (6400, 100880), (6500, 99328), (6656, 97000), (7760, 83200), (8000, 80704), (8320, 77600), (9700, 66560), (10088, 64000), (10240, 63050), (10400, 62080), (12125, 53248), (12416, 52000), (12610, 51200), (12800, 50440), (13000, 49664), (13312, 48500), (15520, 41600), (16000, 40352), (16640, 38800), (19400, 33280), (20176, 32000), (20480, 31525), (20800, 31040), (24250, 26624), (24832, 26000), (25220, 25600)]