13988780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 31921344

約数和(自身を除く): 17932564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 311, 346, 622, 692, 865, 1244, 1555, 1730, 2249, 3110, 3460, 4043, 4498, 6220, 8086, 8996, 11245, 16172, 20215, 22490, 40430, 44980, 53803, 80860, 107606, 215212, 269015, 538030, 699439, 1076060, 1398878, 2797756, 3497195, 6994390, 13988780]

約数ペア:

[(1, 13988780), (2, 6994390), (4, 3497195), (5, 2797756), (10, 1398878), (13, 1076060), (20, 699439), (26, 538030), (52, 269015), (65, 215212), (130, 107606), (173, 80860), (260, 53803), (311, 44980), (346, 40430), (622, 22490), (692, 20215), (865, 16172), (1244, 11245), (1555, 8996), (1730, 8086), (2249, 6220), (3110, 4498), (3460, 4043)]