7781800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 20233080

約数和(自身を除く): 12451280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 73, 82, 100, 104, 130, 146, 164, 200, 205, 260, 292, 325, 328, 365, 410, 520, 533, 584, 650, 730, 820, 949, 1025, 1066, 1300, 1460, 1640, 1825, 1898, 2050, 2132, 2600, 2665, 2920, 2993, 3650, 3796, 4100, 4264, 4745, 5330, 5986, 7300, 7592, 8200, 9490, 10660, 11972, 13325, 14600, 14965, 18980, 21320, 23725, 23944, 26650, 29930, 37960, 38909, 47450, 53300, 59860, 74825, 77818, 94900, 106600, 119720, 149650, 155636, 189800, 194545, 299300, 311272, 389090, 598600, 778180, 972725, 1556360, 1945450, 3890900, 7781800]

約数ペア:

[(1, 7781800), (2, 3890900), (4, 1945450), (5, 1556360), (8, 972725), (10, 778180), (13, 598600), (20, 389090), (25, 311272), (26, 299300), (40, 194545), (41, 189800), (50, 155636), (52, 149650), (65, 119720), (73, 106600), (82, 94900), (100, 77818), (104, 74825), (130, 59860), (146, 53300), (164, 47450), (200, 38909), (205, 37960), (260, 29930), (292, 26650), (325, 23944), (328, 23725), (365, 21320), (410, 18980), (520, 14965), (533, 14600), (584, 13325), (650, 11972), (730, 10660), (820, 9490), (949, 8200), (1025, 7592), (1066, 7300), (1300, 5986), (1460, 5330), (1640, 4745), (1825, 4264), (1898, 4100), (2050, 3796), (2132, 3650), (2600, 2993), (2665, 2920)]