208195020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^4\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 180

約数和(自身を含む): 703466400

約数和(自身を除く): 495271380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 79, 90, 99, 110, 121, 132, 158, 165, 180, 198, 220, 237, 242, 316, 330, 363, 395, 396, 474, 484, 495, 605, 660, 711, 726, 790, 869, 948, 990, 1089, 1185, 1210, 1331, 1422, 1452, 1580, 1738, 1815, 1980, 2178, 2370, 2420, 2607, 2662, 2844, 3476, 3555, 3630, 3993, 4345, 4356, 4740, 5214, 5324, 5445, 6655, 7110, 7260, 7821, 7986, 8690, 9559, 10428, 10890, 11979, 13035, 13310, 14220, 14641, 15642, 15972, 17380, 19118, 19965, 21780, 23958, 26070, 26620, 28677, 29282, 31284, 38236, 39105, 39930, 43923, 47795, 47916, 52140, 57354, 58564, 59895, 73205, 78210, 79860, 86031, 87846, 95590, 105149, 114708, 119790, 131769, 143385, 146410, 156420, 172062, 175692, 191180, 210298, 219615, 239580, 263538, 286770, 292820, 315447, 344124, 420596, 430155, 439230, 525745, 527076, 573540, 630894, 658845, 860310, 878460, 946341, 1051490, 1156639, 1261788, 1317690, 1577235, 1720620, 1892682, 2102980, 2313278, 2635380, 3154470, 3469917, 3785364, 4626556, 4731705, 5783195, 6308940, 6939834, 9463410, 10409751, 11566390, 13879668, 17349585, 18926820, 20819502, 23132780, 34699170, 41639004, 52048755, 69398340, 104097510, 208195020]

約数ペア:

[(1, 208195020), (2, 104097510), (3, 69398340), (4, 52048755), (5, 41639004), (6, 34699170), (9, 23132780), (10, 20819502), (11, 18926820), (12, 17349585), (15, 13879668), (18, 11566390), (20, 10409751), (22, 9463410), (30, 6939834), (33, 6308940), (36, 5783195), (44, 4731705), (45, 4626556), (55, 3785364), (60, 3469917), (66, 3154470), (79, 2635380), (90, 2313278), (99, 2102980), (110, 1892682), (121, 1720620), (132, 1577235), (158, 1317690), (165, 1261788), (180, 1156639), (198, 1051490), (220, 946341), (237, 878460), (242, 860310), (316, 658845), (330, 630894), (363, 573540), (395, 527076), (396, 525745), (474, 439230), (484, 430155), (495, 420596), (605, 344124), (660, 315447), (711, 292820), (726, 286770), (790, 263538), (869, 239580), (948, 219615), (990, 210298), (1089, 191180), (1185, 175692), (1210, 172062), (1331, 156420), (1422, 146410), (1452, 143385), (1580, 131769), (1738, 119790), (1815, 114708), (1980, 105149), (2178, 95590), (2370, 87846), (2420, 86031), (2607, 79860), (2662, 78210), (2844, 73205), (3476, 59895), (3555, 58564), (3630, 57354), (3993, 52140), (4345, 47916), (4356, 47795), (4740, 43923), (5214, 39930), (5324, 39105), (5445, 38236), (6655, 31284), (7110, 29282), (7260, 28677), (7821, 26620), (7986, 26070), (8690, 23958), (9559, 21780), (10428, 19965), (10890, 19118), (11979, 17380), (13035, 15972), (13310, 15642), (14220, 14641)]