170872700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 393724800

約数和(自身を除く): 222852100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 139, 190, 278, 380, 475, 556, 647, 695, 950, 1294, 1390, 1900, 2588, 2641, 2780, 3235, 3475, 5282, 6470, 6950, 10564, 12293, 12940, 13205, 13900, 16175, 24586, 26410, 32350, 49172, 52820, 61465, 64700, 66025, 89933, 122930, 132050, 179866, 245860, 264100, 307325, 359732, 449665, 614650, 899330, 1229300, 1708727, 1798660, 2248325, 3417454, 4496650, 6834908, 8543635, 8993300, 17087270, 34174540, 42718175, 85436350, 170872700]

約数ペア:

[(1, 170872700), (2, 85436350), (4, 42718175), (5, 34174540), (10, 17087270), (19, 8993300), (20, 8543635), (25, 6834908), (38, 4496650), (50, 3417454), (76, 2248325), (95, 1798660), (100, 1708727), (139, 1229300), (190, 899330), (278, 614650), (380, 449665), (475, 359732), (556, 307325), (647, 264100), (695, 245860), (950, 179866), (1294, 132050), (1390, 122930), (1900, 89933), (2588, 66025), (2641, 64700), (2780, 61465), (3235, 52820), (3475, 49172), (5282, 32350), (6470, 26410), (6950, 24586), (10564, 16175), (12293, 13900), (12940, 13205)]