72389720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1907}}^1$

素因数の和:2004

約数の個数: 64

約数和(自身を含む): 177901920

約数和(自身を除く): 105512200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 949, 1460, 1898, 1907, 2920, 3796, 3814, 4745, 7592, 7628, 9490, 9535, 15256, 18980, 19070, 24791, 37960, 38140, 49582, 76280, 99164, 123955, 139211, 198328, 247910, 278422, 495820, 556844, 696055, 991640, 1113688, 1392110, 1809743, 2784220, 3619486, 5568440, 7238972, 9048715, 14477944, 18097430, 36194860, 72389720]

約数ペア:

[(1, 72389720), (2, 36194860), (4, 18097430), (5, 14477944), (8, 9048715), (10, 7238972), (13, 5568440), (20, 3619486), (26, 2784220), (40, 1809743), (52, 1392110), (65, 1113688), (73, 991640), (104, 696055), (130, 556844), (146, 495820), (260, 278422), (292, 247910), (365, 198328), (520, 139211), (584, 123955), (730, 99164), (949, 76280), (1460, 49582), (1898, 38140), (1907, 37960), (2920, 24791), (3796, 19070), (3814, 18980), (4745, 15256), (7592, 9535), (7628, 9490)]