19770800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:355

約数の個数: 120

約数和(自身を含む): 56829696

約数和(自身を除く): 37058896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 140, 161, 175, 184, 200, 230, 280, 307, 322, 350, 368, 400, 460, 560, 575, 614, 644, 700, 805, 920, 1150, 1228, 1288, 1400, 1535, 1610, 1840, 2149, 2300, 2456, 2576, 2800, 3070, 3220, 4025, 4298, 4600, 4912, 6140, 6440, 7061, 7675, 8050, 8596, 9200, 10745, 12280, 12880, 14122, 15350, 16100, 17192, 21490, 24560, 28244, 30700, 32200, 34384, 35305, 42980, 49427, 53725, 56488, 61400, 64400, 70610, 85960, 98854, 107450, 112976, 122800, 141220, 171920, 176525, 197708, 214900, 247135, 282440, 353050, 395416, 429800, 494270, 564880, 706100, 790832, 859600, 988540, 1235675, 1412200, 1977080, 2471350, 2824400, 3954160, 4942700, 9885400, 19770800]

約数ペア:

[(1, 19770800), (2, 9885400), (4, 4942700), (5, 3954160), (7, 2824400), (8, 2471350), (10, 1977080), (14, 1412200), (16, 1235675), (20, 988540), (23, 859600), (25, 790832), (28, 706100), (35, 564880), (40, 494270), (46, 429800), (50, 395416), (56, 353050), (70, 282440), (80, 247135), (92, 214900), (100, 197708), (112, 176525), (115, 171920), (140, 141220), (161, 122800), (175, 112976), (184, 107450), (200, 98854), (230, 85960), (280, 70610), (307, 64400), (322, 61400), (350, 56488), (368, 53725), (400, 49427), (460, 42980), (560, 35305), (575, 34384), (614, 32200), (644, 30700), (700, 28244), (805, 24560), (920, 21490), (1150, 17192), (1228, 16100), (1288, 15350), (1400, 14122), (1535, 12880), (1610, 12280), (1840, 10745), (2149, 9200), (2300, 8596), (2456, 8050), (2576, 7675), (2800, 7061), (3070, 6440), (3220, 6140), (4025, 4912), (4298, 4600)]