20837580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:719

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 43029300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 31, 34, 51, 60, 62, 68, 85, 93, 102, 124, 155, 170, 186, 204, 255, 310, 340, 372, 465, 510, 527, 620, 659, 930, 1020, 1054, 1318, 1581, 1860, 1977, 2108, 2635, 2636, 3162, 3295, 3954, 5270, 6324, 6590, 7905, 7908, 9885, 10540, 11203, 13180, 15810, 19770, 20429, 22406, 31620, 33609, 39540, 40858, 44812, 56015, 61287, 67218, 81716, 102145, 112030, 122574, 134436, 168045, 204290, 224060, 245148, 306435, 336090, 347293, 408580, 612870, 672180, 694586, 1041879, 1225740, 1389172, 1736465, 2083758, 3472930, 4167516, 5209395, 6945860, 10418790, 20837580]

約数ペア:

[(1, 20837580), (2, 10418790), (3, 6945860), (4, 5209395), (5, 4167516), (6, 3472930), (10, 2083758), (12, 1736465), (15, 1389172), (17, 1225740), (20, 1041879), (30, 694586), (31, 672180), (34, 612870), (51, 408580), (60, 347293), (62, 336090), (68, 306435), (85, 245148), (93, 224060), (102, 204290), (124, 168045), (155, 134436), (170, 122574), (186, 112030), (204, 102145), (255, 81716), (310, 67218), (340, 61287), (372, 56015), (465, 44812), (510, 40858), (527, 39540), (620, 33609), (659, 31620), (930, 22406), (1020, 20429), (1054, 19770), (1318, 15810), (1581, 13180), (1860, 11203), (1977, 10540), (2108, 9885), (2635, 7908), (2636, 7905), (3162, 6590), (3295, 6324), (3954, 5270)]