197835520

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1217}}^1$

素因数の和:1365

約数の個数: 72

約数和(自身を含む): 478001664

約数和(自身を除く): 280166144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1217, 1270, 1280, 2032, 2434, 2540, 4064, 4868, 5080, 6085, 8128, 9736, 10160, 12170, 16256, 19472, 20320, 24340, 32512, 38944, 40640, 48680, 77888, 81280, 97360, 154559, 155776, 162560, 194720, 309118, 311552, 389440, 618236, 772795, 778880, 1236472, 1545590, 1557760, 2472944, 3091180, 4945888, 6182360, 9891776, 12364720, 19783552, 24729440, 39567104, 49458880, 98917760, 197835520]

約数ペア:

[(1, 197835520), (2, 98917760), (4, 49458880), (5, 39567104), (8, 24729440), (10, 19783552), (16, 12364720), (20, 9891776), (32, 6182360), (40, 4945888), (64, 3091180), (80, 2472944), (127, 1557760), (128, 1545590), (160, 1236472), (254, 778880), (256, 772795), (320, 618236), (508, 389440), (635, 311552), (640, 309118), (1016, 194720), (1217, 162560), (1270, 155776), (1280, 154559), (2032, 97360), (2434, 81280), (2540, 77888), (4064, 48680), (4868, 40640), (5080, 38944), (6085, 32512), (8128, 24340), (9736, 20320), (10160, 19472), (12170, 16256)]