131254340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1999}}^1$

素因数の和:2089

約数の個数: 72

約数和(自身を含む): 325584000

約数和(自身を除く): 194329660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 469, 490, 670, 938, 980, 1340, 1876, 1999, 2345, 3283, 3998, 4690, 6566, 7996, 9380, 9995, 13132, 13993, 16415, 19990, 27986, 32830, 39980, 55972, 65660, 69965, 97951, 133933, 139930, 195902, 267866, 279860, 391804, 489755, 535732, 669665, 937531, 979510, 1339330, 1875062, 1959020, 2678660, 3750124, 4687655, 6562717, 9375310, 13125434, 18750620, 26250868, 32813585, 65627170, 131254340]

約数ペア:

[(1, 131254340), (2, 65627170), (4, 32813585), (5, 26250868), (7, 18750620), (10, 13125434), (14, 9375310), (20, 6562717), (28, 4687655), (35, 3750124), (49, 2678660), (67, 1959020), (70, 1875062), (98, 1339330), (134, 979510), (140, 937531), (196, 669665), (245, 535732), (268, 489755), (335, 391804), (469, 279860), (490, 267866), (670, 195902), (938, 139930), (980, 133933), (1340, 97951), (1876, 69965), (1999, 65660), (2345, 55972), (3283, 39980), (3998, 32830), (4690, 27986), (6566, 19990), (7996, 16415), (9380, 13993), (9995, 13132)]