18640920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5011}}^1$

素因数の和:5056

約数の個数: 64

約数和(自身を含む): 57738240

約数和(自身を除く): 39097320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5011, 10022, 15033, 20044, 25055, 30066, 40088, 50110, 60132, 75165, 100220, 120264, 150330, 155341, 200440, 300660, 310682, 466023, 601320, 621364, 776705, 932046, 1242728, 1553410, 1864092, 2330115, 3106820, 3728184, 4660230, 6213640, 9320460, 18640920]

約数ペア:

[(1, 18640920), (2, 9320460), (3, 6213640), (4, 4660230), (5, 3728184), (6, 3106820), (8, 2330115), (10, 1864092), (12, 1553410), (15, 1242728), (20, 932046), (24, 776705), (30, 621364), (31, 601320), (40, 466023), (60, 310682), (62, 300660), (93, 200440), (120, 155341), (124, 150330), (155, 120264), (186, 100220), (248, 75165), (310, 60132), (372, 50110), (465, 40088), (620, 30066), (744, 25055), (930, 20044), (1240, 15033), (1860, 10022), (3720, 5011)]