81223688

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6563}}^1$

素因数の和:6606

約数の個数: 64

約数和(自身を含む): 198495360

約数和(自身を除く): 117271672

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 182, 221, 238, 364, 442, 476, 728, 884, 952, 1547, 1768, 3094, 6188, 6563, 12376, 13126, 26252, 45941, 52504, 85319, 91882, 111571, 170638, 183764, 223142, 341276, 367528, 446284, 597233, 682552, 780997, 892568, 1194466, 1450423, 1561994, 2388932, 2900846, 3123988, 4777864, 5801692, 6247976, 10152961, 11603384, 20305922, 40611844, 81223688]

約数ペア:

[(1, 81223688), (2, 40611844), (4, 20305922), (7, 11603384), (8, 10152961), (13, 6247976), (14, 5801692), (17, 4777864), (26, 3123988), (28, 2900846), (34, 2388932), (52, 1561994), (56, 1450423), (68, 1194466), (91, 892568), (104, 780997), (119, 682552), (136, 597233), (182, 446284), (221, 367528), (238, 341276), (364, 223142), (442, 183764), (476, 170638), (728, 111571), (884, 91882), (952, 85319), (1547, 52504), (1768, 45941), (3094, 26252), (6188, 13126), (6563, 12376)]