8640072

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 28454400

約数和(自身を除く): 19814328

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 31, 36, 42, 49, 56, 62, 63, 72, 79, 84, 93, 98, 124, 126, 147, 158, 168, 186, 196, 217, 237, 248, 252, 279, 294, 316, 372, 392, 434, 441, 474, 504, 553, 558, 588, 632, 651, 711, 744, 868, 882, 948, 1106, 1116, 1176, 1302, 1422, 1519, 1659, 1736, 1764, 1896, 1953, 2212, 2232, 2449, 2604, 2844, 3038, 3318, 3528, 3871, 3906, 4424, 4557, 4898, 4977, 5208, 5688, 6076, 6636, 7347, 7742, 7812, 9114, 9796, 9954, 11613, 12152, 13272, 13671, 14694, 15484, 15624, 17143, 18228, 19592, 19908, 22041, 23226, 27342, 29388, 30968, 34286, 34839, 36456, 39816, 44082, 46452, 51429, 54684, 58776, 68572, 69678, 88164, 92904, 102858, 109368, 120001, 137144, 139356, 154287, 176328, 205716, 240002, 278712, 308574, 360003, 411432, 480004, 617148, 720006, 960008, 1080009, 1234296, 1440012, 2160018, 2880024, 4320036, 8640072]

約数ペア:

[(1, 8640072), (2, 4320036), (3, 2880024), (4, 2160018), (6, 1440012), (7, 1234296), (8, 1080009), (9, 960008), (12, 720006), (14, 617148), (18, 480004), (21, 411432), (24, 360003), (28, 308574), (31, 278712), (36, 240002), (42, 205716), (49, 176328), (56, 154287), (62, 139356), (63, 137144), (72, 120001), (79, 109368), (84, 102858), (93, 92904), (98, 88164), (124, 69678), (126, 68572), (147, 58776), (158, 54684), (168, 51429), (186, 46452), (196, 44082), (217, 39816), (237, 36456), (248, 34839), (252, 34286), (279, 30968), (294, 29388), (316, 27342), (372, 23226), (392, 22041), (434, 19908), (441, 19592), (474, 18228), (504, 17143), (553, 15624), (558, 15484), (588, 14694), (632, 13671), (651, 13272), (711, 12152), (744, 11613), (868, 9954), (882, 9796), (948, 9114), (1106, 7812), (1116, 7742), (1176, 7347), (1302, 6636), (1422, 6076), (1519, 5688), (1659, 5208), (1736, 4977), (1764, 4898), (1896, 4557), (1953, 4424), (2212, 3906), (2232, 3871), (2449, 3528), (2604, 3318), (2844, 3038)]