1315671200

素因数分解:

$2^5\times 5^2\times {\mathrm{409}}^1\times {\mathrm{4021}}^1$

素因数の和:4450

約数の個数: 72

約数和(自身を含む): 3220536060

約数和(自身を除く): 1904864860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 409, 800, 818, 1636, 2045, 3272, 4021, 4090, 6544, 8042, 8180, 10225, 13088, 16084, 16360, 20105, 20450, 32168, 32720, 40210, 40900, 64336, 65440, 80420, 81800, 100525, 128672, 160840, 163600, 201050, 321680, 327200, 402100, 643360, 804200, 1608400, 1644589, 3216800, 3289178, 6578356, 8222945, 13156712, 16445890, 26313424, 32891780, 41114725, 52626848, 65783560, 82229450, 131567120, 164458900, 263134240, 328917800, 657835600, 1315671200]

約数ペア:

[(1, 1315671200), (2, 657835600), (4, 328917800), (5, 263134240), (8, 164458900), (10, 131567120), (16, 82229450), (20, 65783560), (25, 52626848), (32, 41114725), (40, 32891780), (50, 26313424), (80, 16445890), (100, 13156712), (160, 8222945), (200, 6578356), (400, 3289178), (409, 3216800), (800, 1644589), (818, 1608400), (1636, 804200), (2045, 643360), (3272, 402100), (4021, 327200), (4090, 321680), (6544, 201050), (8042, 163600), (8180, 160840), (10225, 128672), (13088, 100525), (16084, 81800), (16360, 80420), (20105, 65440), (20450, 64336), (32168, 40900), (32720, 40210)]