18788520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5399}}^1$

素因数の和:5442

約数の個数: 64

約数和(自身を含む): 58320000

約数和(自身を除く): 39531480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 5399, 10798, 16197, 21596, 26995, 32394, 43192, 53990, 64788, 80985, 107980, 129576, 156571, 161970, 215960, 313142, 323940, 469713, 626284, 647880, 782855, 939426, 1252568, 1565710, 1878852, 2348565, 3131420, 3757704, 4697130, 6262840, 9394260, 18788520]

約数ペア:

[(1, 18788520), (2, 9394260), (3, 6262840), (4, 4697130), (5, 3757704), (6, 3131420), (8, 2348565), (10, 1878852), (12, 1565710), (15, 1252568), (20, 939426), (24, 782855), (29, 647880), (30, 626284), (40, 469713), (58, 323940), (60, 313142), (87, 215960), (116, 161970), (120, 156571), (145, 129576), (174, 107980), (232, 80985), (290, 64788), (348, 53990), (435, 43192), (580, 32394), (696, 26995), (870, 21596), (1160, 16197), (1740, 10798), (3480, 5399)]