508206640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{683}}^1$

素因数の和:898

約数の個数: 80

約数和(自身を含む): 1209136896

約数和(自身を除く): 700930256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 131, 142, 262, 284, 355, 524, 568, 655, 683, 710, 1048, 1136, 1310, 1366, 1420, 2096, 2620, 2732, 2840, 3415, 5240, 5464, 5680, 6830, 9301, 10480, 10928, 13660, 18602, 27320, 37204, 46505, 48493, 54640, 74408, 89473, 93010, 96986, 148816, 178946, 186020, 193972, 242465, 357892, 372040, 387944, 447365, 484930, 715784, 744080, 775888, 894730, 969860, 1431568, 1789460, 1939720, 3578920, 3879440, 6352583, 7157840, 12705166, 25410332, 31762915, 50820664, 63525830, 101641328, 127051660, 254103320, 508206640]

約数ペア:

[(1, 508206640), (2, 254103320), (4, 127051660), (5, 101641328), (8, 63525830), (10, 50820664), (16, 31762915), (20, 25410332), (40, 12705166), (71, 7157840), (80, 6352583), (131, 3879440), (142, 3578920), (262, 1939720), (284, 1789460), (355, 1431568), (524, 969860), (568, 894730), (655, 775888), (683, 744080), (710, 715784), (1048, 484930), (1136, 447365), (1310, 387944), (1366, 372040), (1420, 357892), (2096, 242465), (2620, 193972), (2732, 186020), (2840, 178946), (3415, 148816), (5240, 96986), (5464, 93010), (5680, 89473), (6830, 74408), (9301, 54640), (10480, 48493), (10928, 46505), (13660, 37204), (18602, 27320)]