15159620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 38304000

約数和(自身を除く): 23144380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 499, 620, 868, 980, 998, 1085, 1519, 1996, 2170, 2495, 3038, 3493, 4340, 4990, 6076, 6986, 7595, 9980, 13972, 15190, 15469, 17465, 24451, 30380, 30938, 34930, 48902, 61876, 69860, 77345, 97804, 108283, 122255, 154690, 216566, 244510, 309380, 433132, 489020, 541415, 757981, 1082830, 1515962, 2165660, 3031924, 3789905, 7579810, 15159620]

約数ペア:

[(1, 15159620), (2, 7579810), (4, 3789905), (5, 3031924), (7, 2165660), (10, 1515962), (14, 1082830), (20, 757981), (28, 541415), (31, 489020), (35, 433132), (49, 309380), (62, 244510), (70, 216566), (98, 154690), (124, 122255), (140, 108283), (155, 97804), (196, 77345), (217, 69860), (245, 61876), (310, 48902), (434, 34930), (490, 30938), (499, 30380), (620, 24451), (868, 17465), (980, 15469), (998, 15190), (1085, 13972), (1519, 9980), (1996, 7595), (2170, 6986), (2495, 6076), (3038, 4990), (3493, 4340)]