81073280

素因数分解:

$2^7\times 5^1\times {\mathrm{131}}^1\times {\mathrm{967}}^1$

素因数の和:1117

約数の個数: 64

約数和(自身を含む): 195497280

約数和(自身を除く): 114424000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 262, 320, 524, 640, 655, 967, 1048, 1310, 1934, 2096, 2620, 3868, 4192, 4835, 5240, 7736, 8384, 9670, 10480, 15472, 16768, 19340, 20960, 30944, 38680, 41920, 61888, 77360, 83840, 123776, 126677, 154720, 253354, 309440, 506708, 618880, 633385, 1013416, 1266770, 2026832, 2533540, 4053664, 5067080, 8107328, 10134160, 16214656, 20268320, 40536640, 81073280]

約数ペア:

[(1, 81073280), (2, 40536640), (4, 20268320), (5, 16214656), (8, 10134160), (10, 8107328), (16, 5067080), (20, 4053664), (32, 2533540), (40, 2026832), (64, 1266770), (80, 1013416), (128, 633385), (131, 618880), (160, 506708), (262, 309440), (320, 253354), (524, 154720), (640, 126677), (655, 123776), (967, 83840), (1048, 77360), (1310, 61888), (1934, 41920), (2096, 38680), (2620, 30944), (3868, 20960), (4192, 19340), (4835, 16768), (5240, 15472), (7736, 10480), (8384, 9670)]