1278756860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{3323}}^1$

素因数の和:3674

約数の個数: 48

約数和(自身を含む): 2734083072

約数和(自身を除く): 1455326212

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 271, 284, 355, 542, 710, 1084, 1355, 1420, 2710, 3323, 5420, 6646, 13292, 16615, 19241, 33230, 38482, 66460, 76964, 96205, 192410, 235933, 384820, 471866, 900533, 943732, 1179665, 1801066, 2359330, 3602132, 4502665, 4718660, 9005330, 18010660, 63937843, 127875686, 255751372, 319689215, 639378430, 1278756860]

約数ペア:

[(1, 1278756860), (2, 639378430), (4, 319689215), (5, 255751372), (10, 127875686), (20, 63937843), (71, 18010660), (142, 9005330), (271, 4718660), (284, 4502665), (355, 3602132), (542, 2359330), (710, 1801066), (1084, 1179665), (1355, 943732), (1420, 900533), (2710, 471866), (3323, 384820), (5420, 235933), (6646, 192410), (13292, 96205), (16615, 76964), (19241, 66460), (33230, 38482)]