89997908

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1$

素因数の和:87

約数の個数: 144

約数和(自身を含む): 227908800

約数和(自身を除く): 137910892

約数列:

[1, 2, 4, 7, 11, 13, 14, 19, 22, 26, 28, 38, 44, 49, 52, 76, 77, 91, 98, 133, 143, 154, 169, 182, 196, 209, 247, 266, 286, 308, 338, 364, 418, 494, 532, 539, 572, 637, 676, 836, 931, 988, 1001, 1078, 1183, 1274, 1463, 1729, 1859, 1862, 2002, 2156, 2197, 2366, 2548, 2717, 2926, 3211, 3458, 3718, 3724, 4004, 4394, 4732, 5434, 5852, 6422, 6916, 7007, 7436, 8281, 8788, 10241, 10868, 12103, 12844, 13013, 14014, 15379, 16562, 19019, 20482, 22477, 24167, 24206, 26026, 28028, 30758, 33124, 35321, 38038, 40964, 41743, 44954, 48334, 48412, 52052, 61516, 70642, 76076, 83486, 89908, 91091, 96668, 107653, 133133, 141284, 157339, 166972, 169169, 182182, 215306, 247247, 266266, 292201, 314678, 338338, 364364, 430612, 459173, 494494, 532532, 584402, 629356, 676676, 918346, 988988, 1168804, 1184183, 1730729, 1836692, 2045407, 2368366, 3214211, 3461458, 4090814, 4736732, 6428422, 6922916, 8181628, 12856844, 22499477, 44998954, 89997908]

約数ペア:

[(1, 89997908), (2, 44998954), (4, 22499477), (7, 12856844), (11, 8181628), (13, 6922916), (14, 6428422), (19, 4736732), (22, 4090814), (26, 3461458), (28, 3214211), (38, 2368366), (44, 2045407), (49, 1836692), (52, 1730729), (76, 1184183), (77, 1168804), (91, 988988), (98, 918346), (133, 676676), (143, 629356), (154, 584402), (169, 532532), (182, 494494), (196, 459173), (209, 430612), (247, 364364), (266, 338338), (286, 314678), (308, 292201), (338, 266266), (364, 247247), (418, 215306), (494, 182182), (532, 169169), (539, 166972), (572, 157339), (637, 141284), (676, 133133), (836, 107653), (931, 96668), (988, 91091), (1001, 89908), (1078, 83486), (1183, 76076), (1274, 70642), (1463, 61516), (1729, 52052), (1859, 48412), (1862, 48334), (2002, 44954), (2156, 41743), (2197, 40964), (2366, 38038), (2548, 35321), (2717, 33124), (2926, 30758), (3211, 28028), (3458, 26026), (3718, 24206), (3724, 24167), (4004, 22477), (4394, 20482), (4732, 19019), (5434, 16562), (5852, 15379), (6422, 14014), (6916, 13013), (7007, 12844), (7436, 12103), (8281, 10868), (8788, 10241)]