2780826020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{536839}}^1$

素因数の和:536892

約数の個数: 48

約数和(自身を含む): 6854373120

約数和(自身を除く): 4073547100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 536839, 1073678, 2147356, 2684195, 3757873, 5368390, 7515746, 10736780, 15031492, 18789365, 19863043, 37578730, 39726086, 75157460, 79452172, 99315215, 139041301, 198630430, 278082602, 397260860, 556165204, 695206505, 1390413010, 2780826020]

約数ペア:

[(1, 2780826020), (2, 1390413010), (4, 695206505), (5, 556165204), (7, 397260860), (10, 278082602), (14, 198630430), (20, 139041301), (28, 99315215), (35, 79452172), (37, 75157460), (70, 39726086), (74, 37578730), (140, 19863043), (148, 18789365), (185, 15031492), (259, 10736780), (370, 7515746), (518, 5368390), (740, 3757873), (1036, 2684195), (1295, 2147356), (2590, 1073678), (5180, 536839)]