641958720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51439}}^1$

素因数の和:51472

約数の個数: 112

約数和(自身を含む): 2195047680

約数和(自身を除く): 1553088960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 51439, 102878, 154317, 205756, 257195, 308634, 411512, 514390, 617268, 668707, 771585, 823024, 1028780, 1234536, 1337414, 1543170, 1646048, 2006121, 2057560, 2469072, 2674828, 3086340, 3292096, 3343535, 4012242, 4115120, 4938144, 5349656, 6172680, 6687070, 8024484, 8230240, 9876288, 10030605, 10699312, 12345360, 13374140, 16048968, 16460480, 20061210, 21398624, 24690720, 26748280, 32097936, 40122420, 42797248, 49381440, 53496560, 64195872, 80244840, 106993120, 128391744, 160489680, 213986240, 320979360, 641958720]

約数ペア:

[(1, 641958720), (2, 320979360), (3, 213986240), (4, 160489680), (5, 128391744), (6, 106993120), (8, 80244840), (10, 64195872), (12, 53496560), (13, 49381440), (15, 42797248), (16, 40122420), (20, 32097936), (24, 26748280), (26, 24690720), (30, 21398624), (32, 20061210), (39, 16460480), (40, 16048968), (48, 13374140), (52, 12345360), (60, 10699312), (64, 10030605), (65, 9876288), (78, 8230240), (80, 8024484), (96, 6687070), (104, 6172680), (120, 5349656), (130, 4938144), (156, 4115120), (160, 4012242), (192, 3343535), (195, 3292096), (208, 3086340), (240, 2674828), (260, 2469072), (312, 2057560), (320, 2006121), (390, 1646048), (416, 1543170), (480, 1337414), (520, 1234536), (624, 1028780), (780, 823024), (832, 771585), (960, 668707), (1040, 617268), (1248, 514390), (1560, 411512), (2080, 308634), (2496, 257195), (3120, 205756), (4160, 154317), (6240, 102878), (12480, 51439)]