1391878980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{76561}}^1$

素因数の和:76677

約数の個数: 72

約数和(自身を含む): 4263890904

約数和(自身を除く): 2872011924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4545, 6060, 9090, 18180, 76561, 153122, 229683, 306244, 382805, 459366, 689049, 765610, 918732, 1148415, 1378098, 1531220, 2296830, 2756196, 3445245, 4593660, 6890490, 7732661, 13780980, 15465322, 23197983, 30930644, 38663305, 46395966, 69593949, 77326610, 92791932, 115989915, 139187898, 154653220, 231979830, 278375796, 347969745, 463959660, 695939490, 1391878980]

約数ペア:

[(1, 1391878980), (2, 695939490), (3, 463959660), (4, 347969745), (5, 278375796), (6, 231979830), (9, 154653220), (10, 139187898), (12, 115989915), (15, 92791932), (18, 77326610), (20, 69593949), (30, 46395966), (36, 38663305), (45, 30930644), (60, 23197983), (90, 15465322), (101, 13780980), (180, 7732661), (202, 6890490), (303, 4593660), (404, 3445245), (505, 2756196), (606, 2296830), (909, 1531220), (1010, 1378098), (1212, 1148415), (1515, 918732), (1818, 765610), (2020, 689049), (3030, 459366), (3636, 382805), (4545, 306244), (6060, 229683), (9090, 153122), (18180, 76561)]