189939440

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{21011}}^1$

素因数の和:21137

約数の個数: 40

約数和(自身を含む): 445538448

約数和(自身を除く): 255599008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 21011, 42022, 84044, 105055, 168088, 210110, 336176, 420220, 840440, 1680880, 2374243, 4748486, 9496972, 11871215, 18993944, 23742430, 37987888, 47484860, 94969720, 189939440]

約数ペア:

[(1, 189939440), (2, 94969720), (4, 47484860), (5, 37987888), (8, 23742430), (10, 18993944), (16, 11871215), (20, 9496972), (40, 4748486), (80, 2374243), (113, 1680880), (226, 840440), (452, 420220), (565, 336176), (904, 210110), (1130, 168088), (1808, 105055), (2260, 84044), (4520, 42022), (9040, 21011)]