1288200065720

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1\times {\mathrm{392213}}^1$

素因数の和:392904

約数の個数: 64

約数和(自身を含む): 2922496333920

約数和(自身を除く): 1634296268200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 523, 628, 785, 1046, 1256, 1570, 2092, 2615, 3140, 4184, 5230, 6280, 10460, 20920, 82111, 164222, 328444, 392213, 410555, 656888, 784426, 821110, 1568852, 1642220, 1961065, 3137704, 3284440, 3922130, 7844260, 15688520, 61577441, 123154882, 205127399, 246309764, 307887205, 410254798, 492619528, 615774410, 820509596, 1025636995, 1231548820, 1641019192, 2051273990, 2463097640, 4102547980, 8205095960, 32205001643, 64410003286, 128820006572, 161025008215, 257640013144, 322050016430, 644100032860, 1288200065720]

約数ペア:

[(1, 1288200065720), (2, 644100032860), (4, 322050016430), (5, 257640013144), (8, 161025008215), (10, 128820006572), (20, 64410003286), (40, 32205001643), (157, 8205095960), (314, 4102547980), (523, 2463097640), (628, 2051273990), (785, 1641019192), (1046, 1231548820), (1256, 1025636995), (1570, 820509596), (2092, 615774410), (2615, 492619528), (3140, 410254798), (4184, 307887205), (5230, 246309764), (6280, 205127399), (10460, 123154882), (20920, 61577441), (82111, 15688520), (164222, 7844260), (328444, 3922130), (392213, 3284440), (410555, 3137704), (656888, 1961065), (784426, 1642220), (821110, 1568852)]