28694340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 144

約数和(自身を含む): 94348800

約数和(自身を除く): 65654460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 29, 30, 36, 45, 46, 58, 60, 69, 87, 90, 92, 115, 116, 138, 145, 174, 180, 207, 230, 239, 261, 276, 290, 345, 348, 414, 435, 460, 478, 522, 580, 667, 690, 717, 828, 870, 956, 1035, 1044, 1195, 1305, 1334, 1380, 1434, 1740, 2001, 2070, 2151, 2390, 2610, 2668, 2868, 3335, 3585, 4002, 4140, 4302, 4780, 5220, 5497, 6003, 6670, 6931, 7170, 8004, 8604, 10005, 10755, 10994, 12006, 13340, 13862, 14340, 16491, 20010, 20793, 21510, 21988, 24012, 27485, 27724, 30015, 32982, 34655, 40020, 41586, 43020, 49473, 54970, 60030, 62379, 65964, 69310, 82455, 83172, 98946, 103965, 109940, 120060, 124758, 138620, 159413, 164910, 197892, 207930, 247365, 249516, 311895, 318826, 329820, 415860, 478239, 494730, 623790, 637652, 797065, 956478, 989460, 1247580, 1434717, 1594130, 1912956, 2391195, 2869434, 3188260, 4782390, 5738868, 7173585, 9564780, 14347170, 28694340]

約数ペア:

[(1, 28694340), (2, 14347170), (3, 9564780), (4, 7173585), (5, 5738868), (6, 4782390), (9, 3188260), (10, 2869434), (12, 2391195), (15, 1912956), (18, 1594130), (20, 1434717), (23, 1247580), (29, 989460), (30, 956478), (36, 797065), (45, 637652), (46, 623790), (58, 494730), (60, 478239), (69, 415860), (87, 329820), (90, 318826), (92, 311895), (115, 249516), (116, 247365), (138, 207930), (145, 197892), (174, 164910), (180, 159413), (207, 138620), (230, 124758), (239, 120060), (261, 109940), (276, 103965), (290, 98946), (345, 83172), (348, 82455), (414, 69310), (435, 65964), (460, 62379), (478, 60030), (522, 54970), (580, 49473), (667, 43020), (690, 41586), (717, 40020), (828, 34655), (870, 32982), (956, 30015), (1035, 27724), (1044, 27485), (1195, 24012), (1305, 21988), (1334, 21510), (1380, 20793), (1434, 20010), (1740, 16491), (2001, 14340), (2070, 13862), (2151, 13340), (2390, 12006), (2610, 10994), (2668, 10755), (2868, 10005), (3335, 8604), (3585, 8004), (4002, 7170), (4140, 6931), (4302, 6670), (4780, 6003), (5220, 5497)]