19235840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:72

約数の個数: 132

約数和(自身を含む): 52788036

約数和(自身を除く): 33552196

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 256, 260, 272, 289, 320, 340, 416, 442, 512, 520, 544, 578, 640, 680, 832, 884, 1024, 1040, 1088, 1105, 1156, 1280, 1360, 1445, 1664, 1768, 2080, 2176, 2210, 2312, 2560, 2720, 2890, 3328, 3536, 3757, 4160, 4352, 4420, 4624, 5120, 5440, 5780, 6656, 7072, 7514, 8320, 8704, 8840, 9248, 10880, 11560, 13312, 14144, 15028, 16640, 17408, 17680, 18496, 18785, 21760, 23120, 28288, 30056, 33280, 35360, 36992, 37570, 43520, 46240, 56576, 60112, 66560, 70720, 73984, 75140, 87040, 92480, 113152, 120224, 141440, 147968, 150280, 184960, 226304, 240448, 282880, 295936, 300560, 369920, 480896, 565760, 601120, 739840, 961792, 1131520, 1202240, 1479680, 1923584, 2404480, 3847168, 4808960, 9617920, 19235840]

約数ペア:

[(1, 19235840), (2, 9617920), (4, 4808960), (5, 3847168), (8, 2404480), (10, 1923584), (13, 1479680), (16, 1202240), (17, 1131520), (20, 961792), (26, 739840), (32, 601120), (34, 565760), (40, 480896), (52, 369920), (64, 300560), (65, 295936), (68, 282880), (80, 240448), (85, 226304), (104, 184960), (128, 150280), (130, 147968), (136, 141440), (160, 120224), (170, 113152), (208, 92480), (221, 87040), (256, 75140), (260, 73984), (272, 70720), (289, 66560), (320, 60112), (340, 56576), (416, 46240), (442, 43520), (512, 37570), (520, 36992), (544, 35360), (578, 33280), (640, 30056), (680, 28288), (832, 23120), (884, 21760), (1024, 18785), (1040, 18496), (1088, 17680), (1105, 17408), (1156, 16640), (1280, 15028), (1360, 14144), (1445, 13312), (1664, 11560), (1768, 10880), (2080, 9248), (2176, 8840), (2210, 8704), (2312, 8320), (2560, 7514), (2720, 7072), (2890, 6656), (3328, 5780), (3536, 5440), (3757, 5120), (4160, 4624), (4352, 4420)]