51345280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 143110080

約数和(自身を除く): 91764800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 128, 140, 146, 157, 160, 224, 280, 292, 314, 320, 365, 448, 511, 560, 584, 628, 640, 730, 785, 896, 1022, 1099, 1120, 1168, 1256, 1460, 1570, 2044, 2198, 2240, 2336, 2512, 2555, 2920, 3140, 4088, 4396, 4480, 4672, 5024, 5110, 5495, 5840, 6280, 8176, 8792, 9344, 10048, 10220, 10990, 11461, 11680, 12560, 16352, 17584, 20096, 20440, 21980, 22922, 23360, 25120, 32704, 35168, 40880, 43960, 45844, 46720, 50240, 57305, 65408, 70336, 80227, 81760, 87920, 91688, 100480, 114610, 140672, 160454, 163520, 175840, 183376, 229220, 320908, 327040, 351680, 366752, 401135, 458440, 641816, 703360, 733504, 802270, 916880, 1283632, 1467008, 1604540, 1833760, 2567264, 3209080, 3667520, 5134528, 6418160, 7335040, 10269056, 12836320, 25672640, 51345280]

約数ペア:

[(1, 51345280), (2, 25672640), (4, 12836320), (5, 10269056), (7, 7335040), (8, 6418160), (10, 5134528), (14, 3667520), (16, 3209080), (20, 2567264), (28, 1833760), (32, 1604540), (35, 1467008), (40, 1283632), (56, 916880), (64, 802270), (70, 733504), (73, 703360), (80, 641816), (112, 458440), (128, 401135), (140, 366752), (146, 351680), (157, 327040), (160, 320908), (224, 229220), (280, 183376), (292, 175840), (314, 163520), (320, 160454), (365, 140672), (448, 114610), (511, 100480), (560, 91688), (584, 87920), (628, 81760), (640, 80227), (730, 70336), (785, 65408), (896, 57305), (1022, 50240), (1099, 46720), (1120, 45844), (1168, 43960), (1256, 40880), (1460, 35168), (1570, 32704), (2044, 25120), (2198, 23360), (2240, 22922), (2336, 21980), (2512, 20440), (2555, 20096), (2920, 17584), (3140, 16352), (4088, 12560), (4396, 11680), (4480, 11461), (4672, 10990), (5024, 10220), (5110, 10048), (5495, 9344), (5840, 8792), (6280, 8176)]