28989180

素因数分解:

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

素因数の和:70

約数の個数: 108

約数和(自身を含む): 96727176

約数和(自身を除く): 67737996

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, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1331, 1452, 1815, 1980, 2178, 2420, 2662, 3630, 3993, 4356, 5324, 5445, 6655, 7260, 7986, 10890, 11979, 13310, 14641, 15972, 19965, 21780, 23958, 26620, 29282, 39930, 43923, 47916, 58564, 59895, 73205, 79860, 87846, 119790, 131769, 146410, 161051, 175692, 219615, 239580, 263538, 292820, 322102, 439230, 483153, 527076, 644204, 658845, 805255, 878460, 966306, 1317690, 1449459, 1610510, 1932612, 2415765, 2635380, 2898918, 3221020, 4831530, 5797836, 7247295, 9663060, 14494590, 28989180]

約数ペア:

[(1, 28989180), (2, 14494590), (3, 9663060), (4, 7247295), (5, 5797836), (6, 4831530), (9, 3221020), (10, 2898918), (11, 2635380), (12, 2415765), (15, 1932612), (18, 1610510), (20, 1449459), (22, 1317690), (30, 966306), (33, 878460), (36, 805255), (44, 658845), (45, 644204), (55, 527076), (60, 483153), (66, 439230), (90, 322102), (99, 292820), (110, 263538), (121, 239580), (132, 219615), (165, 175692), (180, 161051), (198, 146410), (220, 131769), (242, 119790), (330, 87846), (363, 79860), (396, 73205), (484, 59895), (495, 58564), (605, 47916), (660, 43923), (726, 39930), (990, 29282), (1089, 26620), (1210, 23958), (1331, 21780), (1452, 19965), (1815, 15972), (1980, 14641), (2178, 13310), (2420, 11979), (2662, 10890), (3630, 7986), (3993, 7260), (4356, 6655), (5324, 5445)]