31639860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{25111}}^1$

素因数の和:25133

約数の個数: 72

約数和(自身を含む): 109689216

約数和(自身を除く): 78049356

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 25111, 50222, 75333, 100444, 125555, 150666, 175777, 225999, 251110, 301332, 351554, 376665, 451998, 502220, 527331, 703108, 753330, 878885, 903996, 1054662, 1129995, 1506660, 1581993, 1757770, 2109324, 2259990, 2636655, 3163986, 3515540, 4519980, 5273310, 6327972, 7909965, 10546620, 15819930, 31639860]

約数ペア:

[(1, 31639860), (2, 15819930), (3, 10546620), (4, 7909965), (5, 6327972), (6, 5273310), (7, 4519980), (9, 3515540), (10, 3163986), (12, 2636655), (14, 2259990), (15, 2109324), (18, 1757770), (20, 1581993), (21, 1506660), (28, 1129995), (30, 1054662), (35, 903996), (36, 878885), (42, 753330), (45, 703108), (60, 527331), (63, 502220), (70, 451998), (84, 376665), (90, 351554), (105, 301332), (126, 251110), (140, 225999), (180, 175777), (210, 150666), (252, 125555), (315, 100444), (420, 75333), (630, 50222), (1260, 25111)]