20688200

素因数分解:

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

素因数の和:211

約数の個数: 96

約数和(自身を含む): 52991400

約数和(自身を除く): 32303200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 73, 100, 104, 109, 130, 146, 200, 218, 260, 292, 325, 365, 436, 520, 545, 584, 650, 730, 872, 949, 1090, 1300, 1417, 1460, 1825, 1898, 2180, 2600, 2725, 2834, 2920, 3650, 3796, 4360, 4745, 5450, 5668, 7085, 7300, 7592, 7957, 9490, 10900, 11336, 14170, 14600, 15914, 18980, 21800, 23725, 28340, 31828, 35425, 37960, 39785, 47450, 56680, 63656, 70850, 79570, 94900, 103441, 141700, 159140, 189800, 198925, 206882, 283400, 318280, 397850, 413764, 517205, 795700, 827528, 1034410, 1591400, 2068820, 2586025, 4137640, 5172050, 10344100, 20688200]

約数ペア:

[(1, 20688200), (2, 10344100), (4, 5172050), (5, 4137640), (8, 2586025), (10, 2068820), (13, 1591400), (20, 1034410), (25, 827528), (26, 795700), (40, 517205), (50, 413764), (52, 397850), (65, 318280), (73, 283400), (100, 206882), (104, 198925), (109, 189800), (130, 159140), (146, 141700), (200, 103441), (218, 94900), (260, 79570), (292, 70850), (325, 63656), (365, 56680), (436, 47450), (520, 39785), (545, 37960), (584, 35425), (650, 31828), (730, 28340), (872, 23725), (949, 21800), (1090, 18980), (1300, 15914), (1417, 14600), (1460, 14170), (1825, 11336), (1898, 10900), (2180, 9490), (2600, 7957), (2725, 7592), (2834, 7300), (2920, 7085), (3650, 5668), (3796, 5450), (4360, 4745)]