400497120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{278123}}^1$

素因数の和:278144

約数の個数: 72

約数和(自身を含む): 1366701336

約数和(自身を除く): 966204216

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 278123, 556246, 834369, 1112492, 1390615, 1668738, 2224984, 2503107, 2781230, 3337476, 4171845, 4449968, 5006214, 5562460, 6674952, 8343690, 8899936, 10012428, 11124920, 12515535, 13349904, 16687380, 20024856, 22249840, 25031070, 26699808, 33374760, 40049712, 44499680, 50062140, 66749520, 80099424, 100124280, 133499040, 200248560, 400497120]

約数ペア:

[(1, 400497120), (2, 200248560), (3, 133499040), (4, 100124280), (5, 80099424), (6, 66749520), (8, 50062140), (9, 44499680), (10, 40049712), (12, 33374760), (15, 26699808), (16, 25031070), (18, 22249840), (20, 20024856), (24, 16687380), (30, 13349904), (32, 12515535), (36, 11124920), (40, 10012428), (45, 8899936), (48, 8343690), (60, 6674952), (72, 5562460), (80, 5006214), (90, 4449968), (96, 4171845), (120, 3337476), (144, 2781230), (160, 2503107), (180, 2224984), (240, 1668738), (288, 1390615), (360, 1112492), (480, 834369), (720, 556246), (1440, 278123)]