81663340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16139}}^1$

素因数の和:16182

約数の個数: 48

約数和(自身を含む): 195229440

約数和(自身を除く): 113566100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 16139, 32278, 64556, 80695, 161390, 177529, 322780, 355058, 371197, 710116, 742394, 887645, 1484788, 1775290, 1855985, 3550580, 3711970, 4083167, 7423940, 8166334, 16332668, 20415835, 40831670, 81663340]

約数ペア:

[(1, 81663340), (2, 40831670), (4, 20415835), (5, 16332668), (10, 8166334), (11, 7423940), (20, 4083167), (22, 3711970), (23, 3550580), (44, 1855985), (46, 1775290), (55, 1484788), (92, 887645), (110, 742394), (115, 710116), (220, 371197), (230, 355058), (253, 322780), (460, 177529), (506, 161390), (1012, 80695), (1265, 64556), (2530, 32278), (5060, 16139)]