723760

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 1718640

約数和(自身を除く): 994880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 109, 166, 218, 332, 415, 436, 545, 664, 830, 872, 1090, 1328, 1660, 1744, 2180, 3320, 4360, 6640, 8720, 9047, 18094, 36188, 45235, 72376, 90470, 144752, 180940, 361880, 723760]

約数ペア:

[(1, 723760), (2, 361880), (4, 180940), (5, 144752), (8, 90470), (10, 72376), (16, 45235), (20, 36188), (40, 18094), (80, 9047), (83, 8720), (109, 6640), (166, 4360), (218, 3320), (332, 2180), (415, 1744), (436, 1660), (545, 1328), (664, 1090), (830, 872)]