1388890768

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{6983}}^1$

素因数の和:7423

約数の個数: 40

約数和(自身を含む): 2785107456

約数和(自身を除く): 1396216688

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 401, 496, 802, 1604, 3208, 6416, 6983, 12431, 13966, 24862, 27932, 49724, 55864, 99448, 111728, 198896, 216473, 432946, 865892, 1731784, 2800183, 3463568, 5600366, 11200732, 22401464, 44802928, 86805673, 173611346, 347222692, 694445384, 1388890768]

約数ペア:

[(1, 1388890768), (2, 694445384), (4, 347222692), (8, 173611346), (16, 86805673), (31, 44802928), (62, 22401464), (124, 11200732), (248, 5600366), (401, 3463568), (496, 2800183), (802, 1731784), (1604, 865892), (3208, 432946), (6416, 216473), (6983, 198896), (12431, 111728), (13966, 99448), (24862, 55864), (27932, 49724)]