20923756688

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{243209}}^1$

素因数の和:243519

約数の個数: 40

約数和(自身を含む): 42824416800

約数和(自身を除く): 21900660112

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 283, 304, 566, 1132, 2264, 4528, 5377, 10754, 21508, 43016, 86032, 243209, 486418, 972836, 1945672, 3891344, 4620971, 9241942, 18483884, 36967768, 68828147, 73935536, 137656294, 275312588, 550625176, 1101250352, 1307734793, 2615469586, 5230939172, 10461878344, 20923756688]

約数ペア:

[(1, 20923756688), (2, 10461878344), (4, 5230939172), (8, 2615469586), (16, 1307734793), (19, 1101250352), (38, 550625176), (76, 275312588), (152, 137656294), (283, 73935536), (304, 68828147), (566, 36967768), (1132, 18483884), (2264, 9241942), (4528, 4620971), (5377, 3891344), (10754, 1945672), (21508, 972836), (43016, 486418), (86032, 243209)]