208857100

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 466563888

約数和(自身を除く): 257706788

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 157, 212, 251, 265, 314, 502, 530, 628, 785, 1004, 1060, 1255, 1325, 1570, 2510, 2650, 3140, 3925, 5020, 5300, 6275, 7850, 8321, 12550, 13303, 15700, 16642, 25100, 26606, 33284, 39407, 41605, 53212, 66515, 78814, 83210, 133030, 157628, 166420, 197035, 208025, 266060, 332575, 394070, 416050, 665150, 788140, 832100, 985175, 1330300, 1970350, 2088571, 3940700, 4177142, 8354284, 10442855, 20885710, 41771420, 52214275, 104428550, 208857100]

約数ペア:

[(1, 208857100), (2, 104428550), (4, 52214275), (5, 41771420), (10, 20885710), (20, 10442855), (25, 8354284), (50, 4177142), (53, 3940700), (100, 2088571), (106, 1970350), (157, 1330300), (212, 985175), (251, 832100), (265, 788140), (314, 665150), (502, 416050), (530, 394070), (628, 332575), (785, 266060), (1004, 208025), (1060, 197035), (1255, 166420), (1325, 157628), (1570, 133030), (2510, 83210), (2650, 78814), (3140, 66515), (3925, 53212), (5020, 41605), (5300, 39407), (6275, 33284), (7850, 26606), (8321, 25100), (12550, 16642), (13303, 15700)]