1781158212

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{2621}}^1$

素因数の和:3113

約数の個数: 72

約数和(自身を含む): 4619334720

約数和(自身を除く): 2838176508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 439, 516, 774, 878, 1317, 1548, 1756, 2621, 2634, 3951, 5242, 5268, 7863, 7902, 10484, 15726, 15804, 18877, 23589, 31452, 37754, 47178, 56631, 75508, 94356, 112703, 113262, 169893, 225406, 226524, 338109, 339786, 450812, 676218, 679572, 1014327, 1150619, 1352436, 2028654, 2301238, 3451857, 4057308, 4602476, 6903714, 10355571, 13807428, 20711142, 41422284, 49476617, 98953234, 148429851, 197906468, 296859702, 445289553, 593719404, 890579106, 1781158212]

約数ペア:

[(1, 1781158212), (2, 890579106), (3, 593719404), (4, 445289553), (6, 296859702), (9, 197906468), (12, 148429851), (18, 98953234), (36, 49476617), (43, 41422284), (86, 20711142), (129, 13807428), (172, 10355571), (258, 6903714), (387, 4602476), (439, 4057308), (516, 3451857), (774, 2301238), (878, 2028654), (1317, 1352436), (1548, 1150619), (1756, 1014327), (2621, 679572), (2634, 676218), (3951, 450812), (5242, 339786), (5268, 338109), (7863, 226524), (7902, 225406), (10484, 169893), (15726, 113262), (15804, 112703), (18877, 94356), (23589, 75508), (31452, 56631), (37754, 47178)]