20204580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^4\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 64935360

約数和(自身を除く): 44730780

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 30, 33, 44, 46, 55, 60, 66, 69, 92, 110, 115, 121, 132, 138, 165, 220, 230, 242, 253, 276, 330, 345, 363, 460, 484, 506, 605, 660, 690, 726, 759, 1012, 1210, 1265, 1331, 1380, 1452, 1518, 1815, 2420, 2530, 2662, 2783, 3036, 3630, 3795, 3993, 5060, 5324, 5566, 6655, 7260, 7590, 7986, 8349, 11132, 13310, 13915, 14641, 15180, 15972, 16698, 19965, 26620, 27830, 29282, 30613, 33396, 39930, 41745, 43923, 55660, 58564, 61226, 73205, 79860, 83490, 87846, 91839, 122452, 146410, 153065, 166980, 175692, 183678, 219615, 292820, 306130, 336743, 367356, 439230, 459195, 612260, 673486, 878460, 918390, 1010229, 1346972, 1683715, 1836780, 2020458, 3367430, 4040916, 5051145, 6734860, 10102290, 20204580]

約数ペア:

[(1, 20204580), (2, 10102290), (3, 6734860), (4, 5051145), (5, 4040916), (6, 3367430), (10, 2020458), (11, 1836780), (12, 1683715), (15, 1346972), (20, 1010229), (22, 918390), (23, 878460), (30, 673486), (33, 612260), (44, 459195), (46, 439230), (55, 367356), (60, 336743), (66, 306130), (69, 292820), (92, 219615), (110, 183678), (115, 175692), (121, 166980), (132, 153065), (138, 146410), (165, 122452), (220, 91839), (230, 87846), (242, 83490), (253, 79860), (276, 73205), (330, 61226), (345, 58564), (363, 55660), (460, 43923), (484, 41745), (506, 39930), (605, 33396), (660, 30613), (690, 29282), (726, 27830), (759, 26620), (1012, 19965), (1210, 16698), (1265, 15972), (1331, 15180), (1380, 14641), (1452, 13915), (1518, 13310), (1815, 11132), (2420, 8349), (2530, 7986), (2662, 7590), (2783, 7260), (3036, 6655), (3630, 5566), (3795, 5324), (3993, 5060)]