405531420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{965551}}^1$

素因数の和:965570

約数の個数: 48

約数和(自身を含む): 1297701888

約数和(自身を除く): 892170468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 965551, 1931102, 2896653, 3862204, 4827755, 5793306, 6758857, 9655510, 11586612, 13517714, 14483265, 19311020, 20276571, 27035428, 28966530, 33794285, 40553142, 57933060, 67588570, 81106284, 101382855, 135177140, 202765710, 405531420]

約数ペア:

[(1, 405531420), (2, 202765710), (3, 135177140), (4, 101382855), (5, 81106284), (6, 67588570), (7, 57933060), (10, 40553142), (12, 33794285), (14, 28966530), (15, 27035428), (20, 20276571), (21, 19311020), (28, 14483265), (30, 13517714), (35, 11586612), (42, 9655510), (60, 6758857), (70, 5793306), (84, 4827755), (105, 3862204), (140, 2896653), (210, 1931102), (420, 965551)]