1387989616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{392531}}^1$

素因数の和:392569

約数の個数: 40

約数和(自身を含む): 3066459984

約数和(自身を除く): 1678470368

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 392531, 785062, 1570124, 3140248, 5102903, 6280496, 6673027, 10205806, 13346054, 20411612, 26692108, 40823224, 53384216, 81646448, 86749351, 106768432, 173498702, 346997404, 693994808, 1387989616]

約数ペア:

[(1, 1387989616), (2, 693994808), (4, 346997404), (8, 173498702), (13, 106768432), (16, 86749351), (17, 81646448), (26, 53384216), (34, 40823224), (52, 26692108), (68, 20411612), (104, 13346054), (136, 10205806), (208, 6673027), (221, 6280496), (272, 5102903), (442, 3140248), (884, 1570124), (1768, 785062), (3536, 392531)]