51720500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 124444320

約数和(自身を除く): 72723820

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 109, 125, 130, 146, 218, 250, 260, 292, 325, 365, 436, 500, 545, 650, 730, 949, 1090, 1300, 1417, 1460, 1625, 1825, 1898, 2180, 2725, 2834, 3250, 3650, 3796, 4745, 5450, 5668, 6500, 7085, 7300, 7957, 9125, 9490, 10900, 13625, 14170, 15914, 18250, 18980, 23725, 27250, 28340, 31828, 35425, 36500, 39785, 47450, 54500, 70850, 79570, 94900, 103441, 118625, 141700, 159140, 177125, 198925, 206882, 237250, 354250, 397850, 413764, 474500, 517205, 708500, 795700, 994625, 1034410, 1989250, 2068820, 2586025, 3978500, 5172050, 10344100, 12930125, 25860250, 51720500]

約数ペア:

[(1, 51720500), (2, 25860250), (4, 12930125), (5, 10344100), (10, 5172050), (13, 3978500), (20, 2586025), (25, 2068820), (26, 1989250), (50, 1034410), (52, 994625), (65, 795700), (73, 708500), (100, 517205), (109, 474500), (125, 413764), (130, 397850), (146, 354250), (218, 237250), (250, 206882), (260, 198925), (292, 177125), (325, 159140), (365, 141700), (436, 118625), (500, 103441), (545, 94900), (650, 79570), (730, 70850), (949, 54500), (1090, 47450), (1300, 39785), (1417, 36500), (1460, 35425), (1625, 31828), (1825, 28340), (1898, 27250), (2180, 23725), (2725, 18980), (2834, 18250), (3250, 15914), (3650, 14170), (3796, 13625), (4745, 10900), (5450, 9490), (5668, 9125), (6500, 7957), (7085, 7300)]