20242560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:846

約数の個数: 128

約数和(自身を含む): 69572160

約数和(自身を除く): 49329600

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, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 811, 832, 960, 1040, 1248, 1560, 1622, 1664, 1920, 2080, 2433, 2496, 3120, 3244, 4055, 4160, 4866, 4992, 6240, 6488, 8110, 8320, 9732, 10543, 12165, 12480, 12976, 16220, 19464, 21086, 24330, 24960, 25952, 31629, 32440, 38928, 42172, 48660, 51904, 52715, 63258, 64880, 77856, 84344, 97320, 103808, 105430, 126516, 129760, 155712, 158145, 168688, 194640, 210860, 253032, 259520, 311424, 316290, 337376, 389280, 421720, 506064, 519040, 632580, 674752, 778560, 843440, 1012128, 1265160, 1349504, 1557120, 1686880, 2024256, 2530320, 3373760, 4048512, 5060640, 6747520, 10121280, 20242560]

約数ペア:

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