208590980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{1811}}^1$

素因数の和:2276

約数の個数: 48

約数和(自身を含む): 473062464

約数和(自身を除く): 264471484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 443, 886, 1772, 1811, 2215, 3622, 4430, 5759, 7244, 8860, 9055, 11518, 18110, 23036, 23543, 28795, 36220, 47086, 57590, 94172, 115180, 117715, 235430, 470860, 802273, 1604546, 3209092, 4011365, 8022730, 10429549, 16045460, 20859098, 41718196, 52147745, 104295490, 208590980]

約数ペア:

[(1, 208590980), (2, 104295490), (4, 52147745), (5, 41718196), (10, 20859098), (13, 16045460), (20, 10429549), (26, 8022730), (52, 4011365), (65, 3209092), (130, 1604546), (260, 802273), (443, 470860), (886, 235430), (1772, 117715), (1811, 115180), (2215, 94172), (3622, 57590), (4430, 47086), (5759, 36220), (7244, 28795), (8860, 23543), (9055, 23036), (11518, 18110)]