722797640

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1\times {\mathrm{541}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 1648373760

約数和(自身を除く): 925576120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 263, 508, 526, 541, 635, 1016, 1052, 1082, 1270, 1315, 2104, 2164, 2540, 2630, 2705, 4328, 5080, 5260, 5410, 10520, 10820, 21640, 33401, 66802, 68707, 133604, 137414, 142283, 167005, 267208, 274828, 284566, 334010, 343535, 549656, 569132, 668020, 687070, 711415, 1138264, 1336040, 1374140, 1422830, 2748280, 2845660, 5691320, 18069941, 36139882, 72279764, 90349705, 144559528, 180699410, 361398820, 722797640]

約数ペア:

[(1, 722797640), (2, 361398820), (4, 180699410), (5, 144559528), (8, 90349705), (10, 72279764), (20, 36139882), (40, 18069941), (127, 5691320), (254, 2845660), (263, 2748280), (508, 1422830), (526, 1374140), (541, 1336040), (635, 1138264), (1016, 711415), (1052, 687070), (1082, 668020), (1270, 569132), (1315, 549656), (2104, 343535), (2164, 334010), (2540, 284566), (2630, 274828), (2705, 267208), (4328, 167005), (5080, 142283), (5260, 137414), (5410, 133604), (10520, 68707), (10820, 66802), (21640, 33401)]