20399684784

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{161779}}^1$

素因数の和:161898

約数の個数: 80

約数和(自身を含む): 54886129920

約数和(自身を除く): 34486445136

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 71, 74, 111, 142, 148, 213, 222, 284, 296, 426, 444, 568, 592, 852, 888, 1136, 1704, 1776, 2627, 3408, 5254, 7881, 10508, 15762, 21016, 31524, 42032, 63048, 126096, 161779, 323558, 485337, 647116, 970674, 1294232, 1941348, 2588464, 3882696, 5985823, 7765392, 11486309, 11971646, 17957469, 22972618, 23943292, 34458927, 35914938, 45945236, 47886584, 68917854, 71829876, 91890472, 95773168, 137835708, 143659752, 183780944, 275671416, 287319504, 424993433, 551342832, 849986866, 1274980299, 1699973732, 2549960598, 3399947464, 5099921196, 6799894928, 10199842392, 20399684784]

約数ペア:

[(1, 20399684784), (2, 10199842392), (3, 6799894928), (4, 5099921196), (6, 3399947464), (8, 2549960598), (12, 1699973732), (16, 1274980299), (24, 849986866), (37, 551342832), (48, 424993433), (71, 287319504), (74, 275671416), (111, 183780944), (142, 143659752), (148, 137835708), (213, 95773168), (222, 91890472), (284, 71829876), (296, 68917854), (426, 47886584), (444, 45945236), (568, 35914938), (592, 34458927), (852, 23943292), (888, 22972618), (1136, 17957469), (1704, 11971646), (1776, 11486309), (2627, 7765392), (3408, 5985823), (5254, 3882696), (7881, 2588464), (10508, 1941348), (15762, 1294232), (21016, 970674), (31524, 647116), (42032, 485337), (63048, 323558), (126096, 161779)]