290878880

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7243}}^1$

素因数の和:7509

約数の個数: 48

約数和(自身を含む): 690034464

約数和(自身を除く): 399155584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 7243, 8032, 10040, 14486, 20080, 28972, 36215, 40160, 57944, 72430, 115888, 144860, 231776, 289720, 579440, 1158880, 1817993, 3635986, 7271972, 9089965, 14543944, 18179930, 29087888, 36359860, 58175776, 72719720, 145439440, 290878880]

約数ペア:

[(1, 290878880), (2, 145439440), (4, 72719720), (5, 58175776), (8, 36359860), (10, 29087888), (16, 18179930), (20, 14543944), (32, 9089965), (40, 7271972), (80, 3635986), (160, 1817993), (251, 1158880), (502, 579440), (1004, 289720), (1255, 231776), (2008, 144860), (2510, 115888), (4016, 72430), (5020, 57944), (7243, 40160), (8032, 36215), (10040, 28972), (14486, 20080)]