3055220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 7432320

約数和(自身を除く): 4377100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 157, 278, 314, 556, 628, 695, 785, 973, 1099, 1390, 1570, 1946, 2198, 2780, 3140, 3892, 4396, 4865, 5495, 9730, 10990, 19460, 21823, 21980, 43646, 87292, 109115, 152761, 218230, 305522, 436460, 611044, 763805, 1527610, 3055220]

約数ペア:

[(1, 3055220), (2, 1527610), (4, 763805), (5, 611044), (7, 436460), (10, 305522), (14, 218230), (20, 152761), (28, 109115), (35, 87292), (70, 43646), (139, 21980), (140, 21823), (157, 19460), (278, 10990), (314, 9730), (556, 5495), (628, 4865), (695, 4396), (785, 3892), (973, 3140), (1099, 2780), (1390, 2198), (1570, 1946)]