1988365295

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1956

約数の個数: 64

約数和(自身を含む): 3039068160

約数和(自身を除く): 1050702865

約数列:

[1, 5, 7, 19, 23, 35, 71, 95, 115, 133, 161, 355, 437, 497, 665, 805, 1349, 1633, 1831, 2185, 2485, 3059, 6745, 8165, 9155, 9443, 11431, 12817, 15295, 31027, 34789, 42113, 47215, 57155, 64085, 130001, 155135, 173945, 210565, 217189, 243523, 294791, 650005, 800147, 910007, 1085945, 1217615, 1473955, 2470019, 2990023, 4000735, 4550035, 5601029, 12350095, 14950115, 17290133, 20930161, 28005145, 56810437, 86450665, 104650805, 284052185, 397673059, 1988365295]

約数ペア:

[(1, 1988365295), (5, 397673059), (7, 284052185), (19, 104650805), (23, 86450665), (35, 56810437), (71, 28005145), (95, 20930161), (115, 17290133), (133, 14950115), (161, 12350095), (355, 5601029), (437, 4550035), (497, 4000735), (665, 2990023), (805, 2470019), (1349, 1473955), (1633, 1217615), (1831, 1085945), (2185, 910007), (2485, 800147), (3059, 650005), (6745, 294791), (8165, 243523), (9155, 217189), (9443, 210565), (11431, 173945), (12817, 155135), (15295, 130001), (31027, 64085), (34789, 57155), (42113, 47215)]