20751480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{977}}^1$

素因数の和:1053

約数の個数: 96

約数和(自身を含む): 68655600

約数和(自身を除く): 47904120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 59, 60, 72, 90, 118, 120, 177, 180, 236, 295, 354, 360, 472, 531, 590, 708, 885, 977, 1062, 1180, 1416, 1770, 1954, 2124, 2360, 2655, 2931, 3540, 3908, 4248, 4885, 5310, 5862, 7080, 7816, 8793, 9770, 10620, 11724, 14655, 17586, 19540, 21240, 23448, 29310, 35172, 39080, 43965, 57643, 58620, 70344, 87930, 115286, 117240, 172929, 175860, 230572, 288215, 345858, 351720, 461144, 518787, 576430, 691716, 864645, 1037574, 1152860, 1383432, 1729290, 2075148, 2305720, 2593935, 3458580, 4150296, 5187870, 6917160, 10375740, 20751480]

約数ペア:

[(1, 20751480), (2, 10375740), (3, 6917160), (4, 5187870), (5, 4150296), (6, 3458580), (8, 2593935), (9, 2305720), (10, 2075148), (12, 1729290), (15, 1383432), (18, 1152860), (20, 1037574), (24, 864645), (30, 691716), (36, 576430), (40, 518787), (45, 461144), (59, 351720), (60, 345858), (72, 288215), (90, 230572), (118, 175860), (120, 172929), (177, 117240), (180, 115286), (236, 87930), (295, 70344), (354, 58620), (360, 57643), (472, 43965), (531, 39080), (590, 35172), (708, 29310), (885, 23448), (977, 21240), (1062, 19540), (1180, 17586), (1416, 14655), (1770, 11724), (1954, 10620), (2124, 9770), (2360, 8793), (2655, 7816), (2931, 7080), (3540, 5862), (3908, 5310), (4248, 4885)]