201307720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{971}}^1$

素因数の和:1126

約数の個数: 64

約数和(自身を含む): 466093440

約数和(自身を除く): 264785720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 365, 568, 584, 710, 730, 971, 1420, 1460, 1942, 2840, 2920, 3884, 4855, 5183, 7768, 9710, 10366, 19420, 20732, 25915, 38840, 41464, 51830, 68941, 70883, 103660, 137882, 141766, 207320, 275764, 283532, 344705, 354415, 551528, 567064, 689410, 708830, 1378820, 1417660, 2757640, 2835320, 5032693, 10065386, 20130772, 25163465, 40261544, 50326930, 100653860, 201307720]

約数ペア:

[(1, 201307720), (2, 100653860), (4, 50326930), (5, 40261544), (8, 25163465), (10, 20130772), (20, 10065386), (40, 5032693), (71, 2835320), (73, 2757640), (142, 1417660), (146, 1378820), (284, 708830), (292, 689410), (355, 567064), (365, 551528), (568, 354415), (584, 344705), (710, 283532), (730, 275764), (971, 207320), (1420, 141766), (1460, 137882), (1942, 103660), (2840, 70883), (2920, 68941), (3884, 51830), (4855, 41464), (5183, 38840), (7768, 25915), (9710, 20732), (10366, 19420)]