20438841840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{797}}^1\times {\mathrm{106853}}^1$

素因数の和:107666

約数の個数: 80

約数和(自身を含む): 63440502048

約数和(自身を除く): 43001660208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 797, 1594, 2391, 3188, 3985, 4782, 6376, 7970, 9564, 11955, 12752, 15940, 19128, 23910, 31880, 38256, 47820, 63760, 95640, 106853, 191280, 213706, 320559, 427412, 534265, 641118, 854824, 1068530, 1282236, 1602795, 1709648, 2137060, 2564472, 3205590, 4274120, 5128944, 6411180, 8548240, 12822360, 25644720, 85161841, 170323682, 255485523, 340647364, 425809205, 510971046, 681294728, 851618410, 1021942092, 1277427615, 1362589456, 1703236820, 2043884184, 2554855230, 3406473640, 4087768368, 5109710460, 6812947280, 10219420920, 20438841840]

約数ペア:

[(1, 20438841840), (2, 10219420920), (3, 6812947280), (4, 5109710460), (5, 4087768368), (6, 3406473640), (8, 2554855230), (10, 2043884184), (12, 1703236820), (15, 1362589456), (16, 1277427615), (20, 1021942092), (24, 851618410), (30, 681294728), (40, 510971046), (48, 425809205), (60, 340647364), (80, 255485523), (120, 170323682), (240, 85161841), (797, 25644720), (1594, 12822360), (2391, 8548240), (3188, 6411180), (3985, 5128944), (4782, 4274120), (6376, 3205590), (7970, 2564472), (9564, 2137060), (11955, 1709648), (12752, 1602795), (15940, 1282236), (19128, 1068530), (23910, 854824), (31880, 641118), (38256, 534265), (47820, 427412), (63760, 320559), (95640, 213706), (106853, 191280)]