19906020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:402

約数の個数: 96

約数和(自身を含む): 62576640

約数和(自身を除く): 42670620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 191, 193, 270, 382, 386, 540, 573, 579, 764, 772, 955, 965, 1146, 1158, 1719, 1737, 1910, 1930, 2292, 2316, 2865, 2895, 3438, 3474, 3820, 3860, 5157, 5211, 5730, 5790, 6876, 6948, 8595, 8685, 10314, 10422, 11460, 11580, 17190, 17370, 20628, 20844, 25785, 26055, 34380, 34740, 36863, 51570, 52110, 73726, 103140, 104220, 110589, 147452, 184315, 221178, 331767, 368630, 442356, 552945, 663534, 737260, 995301, 1105890, 1327068, 1658835, 1990602, 2211780, 3317670, 3981204, 4976505, 6635340, 9953010, 19906020]

約数ペア:

[(1, 19906020), (2, 9953010), (3, 6635340), (4, 4976505), (5, 3981204), (6, 3317670), (9, 2211780), (10, 1990602), (12, 1658835), (15, 1327068), (18, 1105890), (20, 995301), (27, 737260), (30, 663534), (36, 552945), (45, 442356), (54, 368630), (60, 331767), (90, 221178), (108, 184315), (135, 147452), (180, 110589), (191, 104220), (193, 103140), (270, 73726), (382, 52110), (386, 51570), (540, 36863), (573, 34740), (579, 34380), (764, 26055), (772, 25785), (955, 20844), (965, 20628), (1146, 17370), (1158, 17190), (1719, 11580), (1737, 11460), (1910, 10422), (1930, 10314), (2292, 8685), (2316, 8595), (2865, 6948), (2895, 6876), (3438, 5790), (3474, 5730), (3820, 5211), (3860, 5157)]