278313140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{14947}}^1$

素因数の和:14989

約数の個数: 72

約数和(自身を含む): 715710240

約数和(自身を除く): 437397100

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 9310, 14947, 18620, 29894, 59788, 74735, 104629, 149470, 209258, 283993, 298940, 418516, 523145, 567986, 732403, 1046290, 1135972, 1419965, 1464806, 1987951, 2092580, 2839930, 2929612, 3662015, 3975902, 5679860, 7324030, 7951804, 9939755, 13915657, 14648060, 19879510, 27831314, 39759020, 55662628, 69578285, 139156570, 278313140]

約数ペア:

[(1, 278313140), (2, 139156570), (4, 69578285), (5, 55662628), (7, 39759020), (10, 27831314), (14, 19879510), (19, 14648060), (20, 13915657), (28, 9939755), (35, 7951804), (38, 7324030), (49, 5679860), (70, 3975902), (76, 3662015), (95, 2929612), (98, 2839930), (133, 2092580), (140, 1987951), (190, 1464806), (196, 1419965), (245, 1135972), (266, 1046290), (380, 732403), (490, 567986), (532, 523145), (665, 418516), (931, 298940), (980, 283993), (1330, 209258), (1862, 149470), (2660, 104629), (3724, 74735), (4655, 59788), (9310, 29894), (14947, 18620)]