209220100

素因数分解:

$2^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{15971}}^1$

素因数の和:16116

約数の個数: 36

約数和(自身を含む): 457501968

約数和(自身を除く): 248281868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 131, 262, 524, 655, 1310, 2620, 3275, 6550, 13100, 15971, 31942, 63884, 79855, 159710, 319420, 399275, 798550, 1597100, 2092201, 4184402, 8368804, 10461005, 20922010, 41844020, 52305025, 104610050, 209220100]

約数ペア:

[(1, 209220100), (2, 104610050), (4, 52305025), (5, 41844020), (10, 20922010), (20, 10461005), (25, 8368804), (50, 4184402), (100, 2092201), (131, 1597100), (262, 798550), (524, 399275), (655, 319420), (1310, 159710), (2620, 79855), (3275, 63884), (6550, 31942), (13100, 15971)]