19782960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2659}}^1$

素因数の和:2706

約数の個数: 80

約数和(自身を含む): 63329280

約数和(自身を除く): 43546320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2659, 3720, 5318, 7440, 7977, 10636, 13295, 15954, 21272, 26590, 31908, 39885, 42544, 53180, 63816, 79770, 82429, 106360, 127632, 159540, 164858, 212720, 247287, 319080, 329716, 412145, 494574, 638160, 659432, 824290, 989148, 1236435, 1318864, 1648580, 1978296, 2472870, 3297160, 3956592, 4945740, 6594320, 9891480, 19782960]

約数ペア:

[(1, 19782960), (2, 9891480), (3, 6594320), (4, 4945740), (5, 3956592), (6, 3297160), (8, 2472870), (10, 1978296), (12, 1648580), (15, 1318864), (16, 1236435), (20, 989148), (24, 824290), (30, 659432), (31, 638160), (40, 494574), (48, 412145), (60, 329716), (62, 319080), (80, 247287), (93, 212720), (120, 164858), (124, 159540), (155, 127632), (186, 106360), (240, 82429), (248, 79770), (310, 63816), (372, 53180), (465, 42544), (496, 39885), (620, 31908), (744, 26590), (930, 21272), (1240, 15954), (1488, 13295), (1860, 10636), (2480, 7977), (2659, 7440), (3720, 5318)]