81141760

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{283}}^1$

素因数の和:321

約数の個数: 112

約数和(自身を含む): 223333056

約数和(自身を除く): 142191296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 283, 320, 448, 512, 560, 566, 640, 896, 1024, 1120, 1132, 1280, 1415, 1792, 1981, 2048, 2240, 2264, 2560, 2830, 3584, 3962, 4096, 4480, 4528, 5120, 5660, 7168, 7924, 8192, 8960, 9056, 9905, 10240, 11320, 14336, 15848, 17920, 18112, 19810, 20480, 22640, 28672, 31696, 35840, 36224, 39620, 40960, 45280, 57344, 63392, 71680, 72448, 79240, 90560, 126784, 143360, 144896, 158480, 181120, 253568, 286720, 289792, 316960, 362240, 507136, 579584, 633920, 724480, 1014272, 1159168, 1267840, 1448960, 2028544, 2318336, 2535680, 2897920, 4057088, 5071360, 5795840, 8114176, 10142720, 11591680, 16228352, 20285440, 40570880, 81141760]

約数ペア:

[(1, 81141760), (2, 40570880), (4, 20285440), (5, 16228352), (7, 11591680), (8, 10142720), (10, 8114176), (14, 5795840), (16, 5071360), (20, 4057088), (28, 2897920), (32, 2535680), (35, 2318336), (40, 2028544), (56, 1448960), (64, 1267840), (70, 1159168), (80, 1014272), (112, 724480), (128, 633920), (140, 579584), (160, 507136), (224, 362240), (256, 316960), (280, 289792), (283, 286720), (320, 253568), (448, 181120), (512, 158480), (560, 144896), (566, 143360), (640, 126784), (896, 90560), (1024, 79240), (1120, 72448), (1132, 71680), (1280, 63392), (1415, 57344), (1792, 45280), (1981, 40960), (2048, 39620), (2240, 36224), (2264, 35840), (2560, 31696), (2830, 28672), (3584, 22640), (3962, 20480), (4096, 19810), (4480, 18112), (4528, 17920), (5120, 15848), (5660, 14336), (7168, 11320), (7924, 10240), (8192, 9905), (8960, 9056)]