25199720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:104

約数の個数: 192

約数和(自身を含む): 75841920

約数和(自身を除く): 50642200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 43, 46, 49, 52, 56, 65, 70, 86, 91, 92, 98, 104, 115, 130, 140, 161, 172, 182, 184, 196, 215, 230, 245, 260, 280, 299, 301, 322, 344, 364, 392, 430, 455, 460, 490, 520, 559, 598, 602, 637, 644, 728, 805, 860, 910, 920, 980, 989, 1118, 1127, 1196, 1204, 1274, 1288, 1495, 1505, 1610, 1720, 1820, 1960, 1978, 2093, 2107, 2236, 2254, 2392, 2408, 2548, 2795, 2990, 3010, 3185, 3220, 3640, 3913, 3956, 4186, 4214, 4472, 4508, 4945, 5096, 5590, 5635, 5980, 6020, 6370, 6440, 6923, 7826, 7912, 8372, 8428, 9016, 9890, 10465, 10535, 11180, 11270, 11960, 12040, 12740, 12857, 13846, 14651, 15652, 16744, 16856, 19565, 19780, 20930, 21070, 22360, 22540, 25480, 25714, 27391, 27692, 29302, 31304, 34615, 39130, 39560, 41860, 42140, 45080, 48461, 51428, 54782, 55384, 58604, 64285, 69230, 73255, 78260, 83720, 84280, 89999, 96922, 102856, 109564, 117208, 128570, 136955, 138460, 146510, 156520, 179998, 193844, 219128, 242305, 257140, 273910, 276920, 293020, 359996, 387688, 449995, 484610, 514280, 547820, 586040, 629993, 719992, 899990, 969220, 1095640, 1259986, 1799980, 1938440, 2519972, 3149965, 3599960, 5039944, 6299930, 12599860, 25199720]

約数ペア:

[(1, 25199720), (2, 12599860), (4, 6299930), (5, 5039944), (7, 3599960), (8, 3149965), (10, 2519972), (13, 1938440), (14, 1799980), (20, 1259986), (23, 1095640), (26, 969220), (28, 899990), (35, 719992), (40, 629993), (43, 586040), (46, 547820), (49, 514280), (52, 484610), (56, 449995), (65, 387688), (70, 359996), (86, 293020), (91, 276920), (92, 273910), (98, 257140), (104, 242305), (115, 219128), (130, 193844), (140, 179998), (161, 156520), (172, 146510), (182, 138460), (184, 136955), (196, 128570), (215, 117208), (230, 109564), (245, 102856), (260, 96922), (280, 89999), (299, 84280), (301, 83720), (322, 78260), (344, 73255), (364, 69230), (392, 64285), (430, 58604), (455, 55384), (460, 54782), (490, 51428), (520, 48461), (559, 45080), (598, 42140), (602, 41860), (637, 39560), (644, 39130), (728, 34615), (805, 31304), (860, 29302), (910, 27692), (920, 27391), (980, 25714), (989, 25480), (1118, 22540), (1127, 22360), (1196, 21070), (1204, 20930), (1274, 19780), (1288, 19565), (1495, 16856), (1505, 16744), (1610, 15652), (1720, 14651), (1820, 13846), (1960, 12857), (1978, 12740), (2093, 12040), (2107, 11960), (2236, 11270), (2254, 11180), (2392, 10535), (2408, 10465), (2548, 9890), (2795, 9016), (2990, 8428), (3010, 8372), (3185, 7912), (3220, 7826), (3640, 6923), (3913, 6440), (3956, 6370), (4186, 6020), (4214, 5980), (4472, 5635), (4508, 5590), (4945, 5096)]