278712

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{79}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 889200

約数和(自身を除く): 610488

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 79, 84, 98, 126, 147, 158, 168, 196, 237, 252, 294, 316, 392, 441, 474, 504, 553, 588, 632, 711, 882, 948, 1106, 1176, 1422, 1659, 1764, 1896, 2212, 2844, 3318, 3528, 3871, 4424, 4977, 5688, 6636, 7742, 9954, 11613, 13272, 15484, 19908, 23226, 30968, 34839, 39816, 46452, 69678, 92904, 139356, 278712]

約数ペア:

[(1, 278712), (2, 139356), (3, 92904), (4, 69678), (6, 46452), (7, 39816), (8, 34839), (9, 30968), (12, 23226), (14, 19908), (18, 15484), (21, 13272), (24, 11613), (28, 9954), (36, 7742), (42, 6636), (49, 5688), (56, 4977), (63, 4424), (72, 3871), (79, 3528), (84, 3318), (98, 2844), (126, 2212), (147, 1896), (158, 1764), (168, 1659), (196, 1422), (237, 1176), (252, 1106), (294, 948), (316, 882), (392, 711), (441, 632), (474, 588), (504, 553)]