20880120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{911}}^1$

素因数の和:1116

約数の個数: 64

約数和(自身を含む): 63037440

約数和(自身を除く): 42157320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 191, 382, 573, 764, 911, 955, 1146, 1528, 1822, 1910, 2292, 2733, 2865, 3644, 3820, 4555, 4584, 5466, 5730, 7288, 7640, 9110, 10932, 11460, 13665, 18220, 21864, 22920, 27330, 36440, 54660, 109320, 174001, 348002, 522003, 696004, 870005, 1044006, 1392008, 1740010, 2088012, 2610015, 3480020, 4176024, 5220030, 6960040, 10440060, 20880120]

約数ペア:

[(1, 20880120), (2, 10440060), (3, 6960040), (4, 5220030), (5, 4176024), (6, 3480020), (8, 2610015), (10, 2088012), (12, 1740010), (15, 1392008), (20, 1044006), (24, 870005), (30, 696004), (40, 522003), (60, 348002), (120, 174001), (191, 109320), (382, 54660), (573, 36440), (764, 27330), (911, 22920), (955, 21864), (1146, 18220), (1528, 13665), (1822, 11460), (1910, 10932), (2292, 9110), (2733, 7640), (2865, 7288), (3644, 5730), (3820, 5466), (4555, 4584)]