51409280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:236

約数の個数: 128

約数和(自身を含む): 136745280

約数和(自身を除く): 85336000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 167, 185, 208, 260, 296, 320, 334, 370, 416, 481, 520, 592, 640, 668, 740, 832, 835, 962, 1040, 1184, 1336, 1480, 1664, 1670, 1924, 2080, 2171, 2368, 2405, 2672, 2960, 3340, 3848, 4160, 4342, 4736, 4810, 5344, 5920, 6179, 6680, 7696, 8320, 8684, 9620, 10688, 10855, 11840, 12358, 13360, 15392, 17368, 19240, 21376, 21710, 23680, 24716, 26720, 30784, 30895, 34736, 38480, 43420, 49432, 53440, 61568, 61790, 69472, 76960, 80327, 86840, 98864, 106880, 123580, 138944, 153920, 160654, 173680, 197728, 247160, 277888, 307840, 321308, 347360, 395456, 401635, 494320, 642616, 694720, 790912, 803270, 988640, 1285232, 1389440, 1606540, 1977280, 2570464, 3213080, 3954560, 5140928, 6426160, 10281856, 12852320, 25704640, 51409280]

約数ペア:

[(1, 51409280), (2, 25704640), (4, 12852320), (5, 10281856), (8, 6426160), (10, 5140928), (13, 3954560), (16, 3213080), (20, 2570464), (26, 1977280), (32, 1606540), (37, 1389440), (40, 1285232), (52, 988640), (64, 803270), (65, 790912), (74, 694720), (80, 642616), (104, 494320), (128, 401635), (130, 395456), (148, 347360), (160, 321308), (167, 307840), (185, 277888), (208, 247160), (260, 197728), (296, 173680), (320, 160654), (334, 153920), (370, 138944), (416, 123580), (481, 106880), (520, 98864), (592, 86840), (640, 80327), (668, 76960), (740, 69472), (832, 61790), (835, 61568), (962, 53440), (1040, 49432), (1184, 43420), (1336, 38480), (1480, 34736), (1664, 30895), (1670, 30784), (1924, 26720), (2080, 24716), (2171, 23680), (2368, 21710), (2405, 21376), (2672, 19240), (2960, 17368), (3340, 15392), (3848, 13360), (4160, 12358), (4342, 11840), (4736, 10855), (4810, 10688), (5344, 9620), (5920, 8684), (6179, 8320), (6680, 7696)]