19902240

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:312

約数の個数: 192

約数和(自身を含む): 74027520

約数和(自身を除く): 54125280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 96, 102, 108, 120, 135, 136, 144, 153, 160, 170, 180, 204, 216, 240, 255, 270, 271, 272, 288, 306, 340, 360, 408, 432, 459, 480, 510, 540, 542, 544, 612, 680, 720, 765, 813, 816, 864, 918, 1020, 1080, 1084, 1224, 1355, 1360, 1440, 1530, 1626, 1632, 1836, 2040, 2160, 2168, 2295, 2439, 2448, 2710, 2720, 3060, 3252, 3672, 4065, 4080, 4320, 4336, 4590, 4607, 4878, 4896, 5420, 6120, 6504, 7317, 7344, 8130, 8160, 8672, 9180, 9214, 9756, 10840, 12195, 12240, 13008, 13821, 14634, 14688, 16260, 18360, 18428, 19512, 21680, 23035, 24390, 24480, 26016, 27642, 29268, 32520, 36585, 36720, 36856, 39024, 41463, 43360, 46070, 48780, 55284, 58536, 65040, 69105, 73170, 73440, 73712, 78048, 82926, 92140, 97560, 110568, 117072, 124389, 130080, 138210, 146340, 147424, 165852, 184280, 195120, 207315, 221136, 234144, 248778, 276420, 292680, 331704, 368560, 390240, 414630, 442272, 497556, 552840, 585360, 621945, 663408, 737120, 829260, 995112, 1105680, 1170720, 1243890, 1326816, 1658520, 1990224, 2211360, 2487780, 3317040, 3980448, 4975560, 6634080, 9951120, 19902240]

約数ペア:

[(1, 19902240), (2, 9951120), (3, 6634080), (4, 4975560), (5, 3980448), (6, 3317040), (8, 2487780), (9, 2211360), (10, 1990224), (12, 1658520), (15, 1326816), (16, 1243890), (17, 1170720), (18, 1105680), (20, 995112), (24, 829260), (27, 737120), (30, 663408), (32, 621945), (34, 585360), (36, 552840), (40, 497556), (45, 442272), (48, 414630), (51, 390240), (54, 368560), (60, 331704), (68, 292680), (72, 276420), (80, 248778), (85, 234144), (90, 221136), (96, 207315), (102, 195120), (108, 184280), (120, 165852), (135, 147424), (136, 146340), (144, 138210), (153, 130080), (160, 124389), (170, 117072), (180, 110568), (204, 97560), (216, 92140), (240, 82926), (255, 78048), (270, 73712), (271, 73440), (272, 73170), (288, 69105), (306, 65040), (340, 58536), (360, 55284), (408, 48780), (432, 46070), (459, 43360), (480, 41463), (510, 39024), (540, 36856), (542, 36720), (544, 36585), (612, 32520), (680, 29268), (720, 27642), (765, 26016), (813, 24480), (816, 24390), (864, 23035), (918, 21680), (1020, 19512), (1080, 18428), (1084, 18360), (1224, 16260), (1355, 14688), (1360, 14634), (1440, 13821), (1530, 13008), (1626, 12240), (1632, 12195), (1836, 10840), (2040, 9756), (2160, 9214), (2168, 9180), (2295, 8672), (2439, 8160), (2448, 8130), (2710, 7344), (2720, 7317), (3060, 6504), (3252, 6120), (3672, 5420), (4065, 4896), (4080, 4878), (4320, 4607), (4336, 4590)]