1285326020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{653}}^1$

素因数の和:1085

約数の個数: 96

約数和(自身を含む): 3085205760

約数和(自身を除く): 1799879740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 389, 460, 506, 653, 778, 1012, 1265, 1306, 1556, 1945, 2530, 2612, 3265, 3890, 4279, 5060, 6530, 7183, 7780, 8558, 8947, 13060, 14366, 15019, 17116, 17894, 21395, 28732, 30038, 35788, 35915, 42790, 44735, 60076, 71830, 75095, 85580, 89470, 98417, 143660, 150190, 165209, 178940, 196834, 254017, 300380, 330418, 393668, 492085, 508034, 660836, 826045, 984170, 1016068, 1270085, 1652090, 1968340, 2540170, 2794187, 3304180, 5080340, 5588374, 5842391, 11176748, 11684782, 13970935, 23369564, 27941870, 29211955, 55883740, 58423910, 64266301, 116847820, 128532602, 257065204, 321331505, 642663010, 1285326020]

約数ペア:

[(1, 1285326020), (2, 642663010), (4, 321331505), (5, 257065204), (10, 128532602), (11, 116847820), (20, 64266301), (22, 58423910), (23, 55883740), (44, 29211955), (46, 27941870), (55, 23369564), (92, 13970935), (110, 11684782), (115, 11176748), (220, 5842391), (230, 5588374), (253, 5080340), (389, 3304180), (460, 2794187), (506, 2540170), (653, 1968340), (778, 1652090), (1012, 1270085), (1265, 1016068), (1306, 984170), (1556, 826045), (1945, 660836), (2530, 508034), (2612, 492085), (3265, 393668), (3890, 330418), (4279, 300380), (5060, 254017), (6530, 196834), (7183, 178940), (7780, 165209), (8558, 150190), (8947, 143660), (13060, 98417), (14366, 89470), (15019, 85580), (17116, 75095), (17894, 71830), (21395, 60076), (28732, 44735), (30038, 42790), (35788, 35915)]