221330452

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:621

約数の個数: 72

約数和(自身を含む): 472416000

約数和(自身を除く): 251085548

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 73, 98, 124, 146, 196, 217, 292, 434, 499, 511, 868, 998, 1022, 1519, 1996, 2044, 2263, 3038, 3493, 3577, 4526, 6076, 6986, 7154, 9052, 13972, 14308, 15469, 15841, 24451, 30938, 31682, 36427, 48902, 61876, 63364, 72854, 97804, 108283, 110887, 145708, 216566, 221774, 254989, 433132, 443548, 509978, 757981, 1019956, 1129237, 1515962, 1784923, 2258474, 3031924, 3569846, 4516948, 7139692, 7904659, 15809318, 31618636, 55332613, 110665226, 221330452]

約数ペア:

[(1, 221330452), (2, 110665226), (4, 55332613), (7, 31618636), (14, 15809318), (28, 7904659), (31, 7139692), (49, 4516948), (62, 3569846), (73, 3031924), (98, 2258474), (124, 1784923), (146, 1515962), (196, 1129237), (217, 1019956), (292, 757981), (434, 509978), (499, 443548), (511, 433132), (868, 254989), (998, 221774), (1022, 216566), (1519, 145708), (1996, 110887), (2044, 108283), (2263, 97804), (3038, 72854), (3493, 63364), (3577, 61876), (4526, 48902), (6076, 36427), (6986, 31682), (7154, 30938), (9052, 24451), (13972, 15841), (14308, 15469)]