890222720

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10007}}^1$

素因数の和:10165

約数の個数: 64

約数和(自身を含む): 2143713600

約数和(自身を除く): 1253490880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 320, 556, 640, 695, 1112, 1390, 2224, 2780, 4448, 5560, 8896, 10007, 11120, 17792, 20014, 22240, 40028, 44480, 50035, 80056, 88960, 100070, 160112, 200140, 320224, 400280, 640448, 800560, 1280896, 1390973, 1601120, 2781946, 3202240, 5563892, 6404480, 6954865, 11127784, 13909730, 22255568, 27819460, 44511136, 55638920, 89022272, 111277840, 178044544, 222555680, 445111360, 890222720]

約数ペア:

[(1, 890222720), (2, 445111360), (4, 222555680), (5, 178044544), (8, 111277840), (10, 89022272), (16, 55638920), (20, 44511136), (32, 27819460), (40, 22255568), (64, 13909730), (80, 11127784), (128, 6954865), (139, 6404480), (160, 5563892), (278, 3202240), (320, 2781946), (556, 1601120), (640, 1390973), (695, 1280896), (1112, 800560), (1390, 640448), (2224, 400280), (2780, 320224), (4448, 200140), (5560, 160112), (8896, 100070), (10007, 88960), (11120, 80056), (17792, 50035), (20014, 44480), (22240, 40028)]