81863440

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44491}}^1$

素因数の和:44527

約数の個数: 40

約数和(自身を含む): 198612288

約数和(自身を除く): 116748848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 44491, 88982, 177964, 222455, 355928, 444910, 711856, 889820, 1023293, 1779640, 2046586, 3559280, 4093172, 5116465, 8186344, 10232930, 16372688, 20465860, 40931720, 81863440]

約数ペア:

[(1, 81863440), (2, 40931720), (4, 20465860), (5, 16372688), (8, 10232930), (10, 8186344), (16, 5116465), (20, 4093172), (23, 3559280), (40, 2046586), (46, 1779640), (80, 1023293), (92, 889820), (115, 711856), (184, 444910), (230, 355928), (368, 222455), (460, 177964), (920, 88982), (1840, 44491)]