40485120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:848

約数の個数: 144

約数和(自身を含む): 139417152

約数和(自身を除く): 98932032

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, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 811, 832, 960, 1040, 1248, 1280, 1560, 1622, 1664, 1920, 2080, 2433, 2496, 3120, 3244, 3328, 3840, 4055, 4160, 4866, 4992, 6240, 6488, 8110, 8320, 9732, 9984, 10543, 12165, 12480, 12976, 16220, 16640, 19464, 21086, 24330, 24960, 25952, 31629, 32440, 38928, 42172, 48660, 49920, 51904, 52715, 63258, 64880, 77856, 84344, 97320, 103808, 105430, 126516, 129760, 155712, 158145, 168688, 194640, 207616, 210860, 253032, 259520, 311424, 316290, 337376, 389280, 421720, 506064, 519040, 622848, 632580, 674752, 778560, 843440, 1012128, 1038080, 1265160, 1349504, 1557120, 1686880, 2024256, 2530320, 2699008, 3114240, 3373760, 4048512, 5060640, 6747520, 8097024, 10121280, 13495040, 20242560, 40485120]

約数ペア:

[(1, 40485120), (2, 20242560), (3, 13495040), (4, 10121280), (5, 8097024), (6, 6747520), (8, 5060640), (10, 4048512), (12, 3373760), (13, 3114240), (15, 2699008), (16, 2530320), (20, 2024256), (24, 1686880), (26, 1557120), (30, 1349504), (32, 1265160), (39, 1038080), (40, 1012128), (48, 843440), (52, 778560), (60, 674752), (64, 632580), (65, 622848), (78, 519040), (80, 506064), (96, 421720), (104, 389280), (120, 337376), (128, 316290), (130, 311424), (156, 259520), (160, 253032), (192, 210860), (195, 207616), (208, 194640), (240, 168688), (256, 158145), (260, 155712), (312, 129760), (320, 126516), (384, 105430), (390, 103808), (416, 97320), (480, 84344), (520, 77856), (624, 64880), (640, 63258), (768, 52715), (780, 51904), (811, 49920), (832, 48660), (960, 42172), (1040, 38928), (1248, 32440), (1280, 31629), (1560, 25952), (1622, 24960), (1664, 24330), (1920, 21086), (2080, 19464), (2433, 16640), (2496, 16220), (3120, 12976), (3244, 12480), (3328, 12165), (3840, 10543), (4055, 9984), (4160, 9732), (4866, 8320), (4992, 8110), (6240, 6488)]