19542440

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{797}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 44097480

約数和(自身を除く): 24555040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 797, 1226, 1594, 2452, 3065, 3188, 3985, 4904, 6130, 6376, 7970, 12260, 15940, 24520, 31880, 488561, 977122, 1954244, 2442805, 3908488, 4885610, 9771220, 19542440]

約数ペア:

[(1, 19542440), (2, 9771220), (4, 4885610), (5, 3908488), (8, 2442805), (10, 1954244), (20, 977122), (40, 488561), (613, 31880), (797, 24520), (1226, 15940), (1594, 12260), (2452, 7970), (3065, 6376), (3188, 6130), (3985, 4904)]