213804680

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{64399}}^1$

素因数の和:64493

約数の個数: 32

約数和(自身を含む): 486864000

約数和(自身を除く): 273059320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 64399, 128798, 257596, 321995, 515192, 643990, 1287980, 2575960, 5345117, 10690234, 21380468, 26725585, 42760936, 53451170, 106902340, 213804680]

約数ペア:

[(1, 213804680), (2, 106902340), (4, 53451170), (5, 42760936), (8, 26725585), (10, 21380468), (20, 10690234), (40, 5345117), (83, 2575960), (166, 1287980), (332, 643990), (415, 515192), (664, 321995), (830, 257596), (1660, 128798), (3320, 64399)]