1689688

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 4273920

約数和(自身を除く): 2584232

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 211, 286, 308, 364, 422, 572, 616, 728, 844, 1001, 1144, 1477, 1688, 2002, 2321, 2743, 2954, 4004, 4642, 5486, 5908, 8008, 9284, 10972, 11816, 16247, 18568, 19201, 21944, 30173, 32494, 38402, 60346, 64988, 76804, 120692, 129976, 153608, 211211, 241384, 422422, 844844, 1689688]

約数ペア:

[(1, 1689688), (2, 844844), (4, 422422), (7, 241384), (8, 211211), (11, 153608), (13, 129976), (14, 120692), (22, 76804), (26, 64988), (28, 60346), (44, 38402), (52, 32494), (56, 30173), (77, 21944), (88, 19201), (91, 18568), (104, 16247), (143, 11816), (154, 10972), (182, 9284), (211, 8008), (286, 5908), (308, 5486), (364, 4642), (422, 4004), (572, 2954), (616, 2743), (728, 2321), (844, 2002), (1001, 1688), (1144, 1477)]