19911560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{941}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 46883340

約数和(自身を除く): 26971780

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 941, 1058, 1882, 2116, 2645, 3764, 4232, 4705, 5290, 7528, 9410, 10580, 18820, 21160, 21643, 37640, 43286, 86572, 108215, 173144, 216430, 432860, 497789, 865720, 995578, 1991156, 2488945, 3982312, 4977890, 9955780, 19911560]

約数ペア:

[(1, 19911560), (2, 9955780), (4, 4977890), (5, 3982312), (8, 2488945), (10, 1991156), (20, 995578), (23, 865720), (40, 497789), (46, 432860), (92, 216430), (115, 173144), (184, 108215), (230, 86572), (460, 43286), (529, 37640), (920, 21643), (941, 21160), (1058, 18820), (1882, 10580), (2116, 9410), (2645, 7528), (3764, 5290), (4232, 4705)]