31237976

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 81907200

約数和(自身を除く): 50669224

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 19, 22, 28, 34, 38, 44, 56, 68, 76, 77, 88, 119, 133, 136, 152, 154, 157, 187, 209, 238, 266, 308, 314, 323, 374, 418, 476, 532, 616, 628, 646, 748, 836, 952, 1064, 1099, 1256, 1292, 1309, 1463, 1496, 1672, 1727, 2198, 2261, 2584, 2618, 2669, 2926, 2983, 3454, 3553, 4396, 4522, 5236, 5338, 5852, 5966, 6908, 7106, 8792, 9044, 10472, 10676, 11704, 11932, 12089, 13816, 14212, 18088, 18683, 20881, 21352, 23864, 24178, 24871, 28424, 29359, 32813, 37366, 41762, 48356, 49742, 50711, 58718, 65626, 74732, 83524, 96712, 99484, 101422, 117436, 131252, 149464, 167048, 198968, 202844, 205513, 229691, 234872, 262504, 354977, 405688, 411026, 459382, 557821, 709954, 822052, 918764, 1115642, 1419908, 1644104, 1837528, 2231284, 2839816, 3904747, 4462568, 7809494, 15618988, 31237976]

約数ペア:

[(1, 31237976), (2, 15618988), (4, 7809494), (7, 4462568), (8, 3904747), (11, 2839816), (14, 2231284), (17, 1837528), (19, 1644104), (22, 1419908), (28, 1115642), (34, 918764), (38, 822052), (44, 709954), (56, 557821), (68, 459382), (76, 411026), (77, 405688), (88, 354977), (119, 262504), (133, 234872), (136, 229691), (152, 205513), (154, 202844), (157, 198968), (187, 167048), (209, 149464), (238, 131252), (266, 117436), (308, 101422), (314, 99484), (323, 96712), (374, 83524), (418, 74732), (476, 65626), (532, 58718), (616, 50711), (628, 49742), (646, 48356), (748, 41762), (836, 37366), (952, 32813), (1064, 29359), (1099, 28424), (1256, 24871), (1292, 24178), (1309, 23864), (1463, 21352), (1496, 20881), (1672, 18683), (1727, 18088), (2198, 14212), (2261, 13816), (2584, 12089), (2618, 11932), (2669, 11704), (2926, 10676), (2983, 10472), (3454, 9044), (3553, 8792), (4396, 7106), (4522, 6908), (5236, 5966), (5338, 5852)]