7828020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 23982504

約数和(自身を除く): 16154484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 277, 314, 471, 554, 628, 785, 831, 942, 1108, 1385, 1413, 1570, 1662, 1884, 2355, 2493, 2770, 2826, 3140, 3324, 4155, 4710, 4986, 5540, 5652, 7065, 8310, 9420, 9972, 12465, 14130, 16620, 24930, 28260, 43489, 49860, 86978, 130467, 173956, 217445, 260934, 391401, 434890, 521868, 652335, 782802, 869780, 1304670, 1565604, 1957005, 2609340, 3914010, 7828020]

約数ペア:

[(1, 7828020), (2, 3914010), (3, 2609340), (4, 1957005), (5, 1565604), (6, 1304670), (9, 869780), (10, 782802), (12, 652335), (15, 521868), (18, 434890), (20, 391401), (30, 260934), (36, 217445), (45, 173956), (60, 130467), (90, 86978), (157, 49860), (180, 43489), (277, 28260), (314, 24930), (471, 16620), (554, 14130), (628, 12465), (785, 9972), (831, 9420), (942, 8310), (1108, 7065), (1385, 5652), (1413, 5540), (1570, 4986), (1662, 4710), (1884, 4155), (2355, 3324), (2493, 3140), (2770, 2826)]