405495520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{439}}^1$

素因数の和:728

約数の個数: 96

約数和(自身を含む): 1005903360

約数和(自身を除く): 600407840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 251, 368, 439, 460, 502, 736, 878, 920, 1004, 1255, 1756, 1840, 2008, 2195, 2510, 3512, 3680, 4016, 4390, 5020, 5773, 7024, 8032, 8780, 10040, 10097, 11546, 14048, 17560, 20080, 20194, 23092, 28865, 35120, 40160, 40388, 46184, 50485, 57730, 70240, 80776, 92368, 100970, 110189, 115460, 161552, 184736, 201940, 220378, 230920, 323104, 403880, 440756, 461840, 550945, 807760, 881512, 923680, 1101890, 1615520, 1763024, 2203780, 2534347, 3526048, 4407560, 5068694, 8815120, 10137388, 12671735, 17630240, 20274776, 25343470, 40549552, 50686940, 81099104, 101373880, 202747760, 405495520]

約数ペア:

[(1, 405495520), (2, 202747760), (4, 101373880), (5, 81099104), (8, 50686940), (10, 40549552), (16, 25343470), (20, 20274776), (23, 17630240), (32, 12671735), (40, 10137388), (46, 8815120), (80, 5068694), (92, 4407560), (115, 3526048), (160, 2534347), (184, 2203780), (230, 1763024), (251, 1615520), (368, 1101890), (439, 923680), (460, 881512), (502, 807760), (736, 550945), (878, 461840), (920, 440756), (1004, 403880), (1255, 323104), (1756, 230920), (1840, 220378), (2008, 201940), (2195, 184736), (2510, 161552), (3512, 115460), (3680, 110189), (4016, 100970), (4390, 92368), (5020, 80776), (5773, 70240), (7024, 57730), (8032, 50485), (8780, 46184), (10040, 40388), (10097, 40160), (11546, 35120), (14048, 28865), (17560, 23092), (20080, 20194)]