9881980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5953}}^1$

素因数の和:6045

約数の個数: 24

約数和(自身を含む): 21005712

約数和(自身を除く): 11123732

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 5953, 11906, 23812, 29765, 59530, 119060, 494099, 988198, 1976396, 2470495, 4940990, 9881980]

約数ペア:

[(1, 9881980), (2, 4940990), (4, 2470495), (5, 1976396), (10, 988198), (20, 494099), (83, 119060), (166, 59530), (332, 29765), (415, 23812), (830, 11906), (1660, 5953)]