20441460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 62657280

約数和(自身を除く): 42215820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 73, 78, 130, 146, 156, 195, 219, 260, 292, 359, 365, 390, 438, 718, 730, 780, 876, 949, 1077, 1095, 1436, 1460, 1795, 1898, 2154, 2190, 2847, 3590, 3796, 4308, 4380, 4667, 4745, 5385, 5694, 7180, 9334, 9490, 10770, 11388, 14001, 14235, 18668, 18980, 21540, 23335, 26207, 28002, 28470, 46670, 52414, 56004, 56940, 70005, 78621, 93340, 104828, 131035, 140010, 157242, 262070, 280020, 314484, 340691, 393105, 524140, 681382, 786210, 1022073, 1362764, 1572420, 1703455, 2044146, 3406910, 4088292, 5110365, 6813820, 10220730, 20441460]

約数ペア:

[(1, 20441460), (2, 10220730), (3, 6813820), (4, 5110365), (5, 4088292), (6, 3406910), (10, 2044146), (12, 1703455), (13, 1572420), (15, 1362764), (20, 1022073), (26, 786210), (30, 681382), (39, 524140), (52, 393105), (60, 340691), (65, 314484), (73, 280020), (78, 262070), (130, 157242), (146, 140010), (156, 131035), (195, 104828), (219, 93340), (260, 78621), (292, 70005), (359, 56940), (365, 56004), (390, 52414), (438, 46670), (718, 28470), (730, 28002), (780, 26207), (876, 23335), (949, 21540), (1077, 18980), (1095, 18668), (1436, 14235), (1460, 14001), (1795, 11388), (1898, 10770), (2154, 9490), (2190, 9334), (2847, 7180), (3590, 5694), (3796, 5385), (4308, 4745), (4380, 4667)]