31320180

素因数分解:

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

素因数の和:1117

約数の個数: 72

約数和(自身を含む): 95606784

約数和(自身を除く): 64286604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 191, 382, 573, 764, 911, 955, 1146, 1719, 1822, 1910, 2292, 2733, 2865, 3438, 3644, 3820, 4555, 5466, 5730, 6876, 8199, 8595, 9110, 10932, 11460, 13665, 16398, 17190, 18220, 27330, 32796, 34380, 40995, 54660, 81990, 163980, 174001, 348002, 522003, 696004, 870005, 1044006, 1566009, 1740010, 2088012, 2610015, 3132018, 3480020, 5220030, 6264036, 7830045, 10440060, 15660090, 31320180]

約数ペア:

[(1, 31320180), (2, 15660090), (3, 10440060), (4, 7830045), (5, 6264036), (6, 5220030), (9, 3480020), (10, 3132018), (12, 2610015), (15, 2088012), (18, 1740010), (20, 1566009), (30, 1044006), (36, 870005), (45, 696004), (60, 522003), (90, 348002), (180, 174001), (191, 163980), (382, 81990), (573, 54660), (764, 40995), (911, 34380), (955, 32796), (1146, 27330), (1719, 18220), (1822, 17190), (1910, 16398), (2292, 13665), (2733, 11460), (2865, 10932), (3438, 9110), (3644, 8595), (3820, 8199), (4555, 6876), (5466, 5730)]