247907840

素因数分解:

$2^9\times 5^1\times {\mathrm{179}}^1\times {\mathrm{541}}^1$

素因数の和:743

約数の個数: 80

約数和(自身を含む): 598823280

約数和(自身を除く): 350915440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 179, 256, 320, 358, 512, 541, 640, 716, 895, 1082, 1280, 1432, 1790, 2164, 2560, 2705, 2864, 3580, 4328, 5410, 5728, 7160, 8656, 10820, 11456, 14320, 17312, 21640, 22912, 28640, 34624, 43280, 45824, 57280, 69248, 86560, 91648, 96839, 114560, 138496, 173120, 193678, 229120, 276992, 346240, 387356, 458240, 484195, 692480, 774712, 968390, 1384960, 1549424, 1936780, 3098848, 3873560, 6197696, 7747120, 12395392, 15494240, 24790784, 30988480, 49581568, 61976960, 123953920, 247907840]

約数ペア:

[(1, 247907840), (2, 123953920), (4, 61976960), (5, 49581568), (8, 30988480), (10, 24790784), (16, 15494240), (20, 12395392), (32, 7747120), (40, 6197696), (64, 3873560), (80, 3098848), (128, 1936780), (160, 1549424), (179, 1384960), (256, 968390), (320, 774712), (358, 692480), (512, 484195), (541, 458240), (640, 387356), (716, 346240), (895, 276992), (1082, 229120), (1280, 193678), (1432, 173120), (1790, 138496), (2164, 114560), (2560, 96839), (2705, 91648), (2864, 86560), (3580, 69248), (4328, 57280), (5410, 45824), (5728, 43280), (7160, 34624), (8656, 28640), (10820, 22912), (11456, 21640), (14320, 17312)]