989976988

素因数分解:

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

素因数の和:98

約数の個数: 216

約数和(自身を含む): 2525989200

約数和(自身を除く): 1536012212

約数列:

[1, 2, 4, 7, 11, 13, 14, 19, 22, 26, 28, 38, 44, 49, 52, 76, 77, 91, 98, 121, 133, 143, 154, 169, 182, 196, 209, 242, 247, 266, 286, 308, 338, 364, 418, 484, 494, 532, 539, 572, 637, 676, 836, 847, 931, 988, 1001, 1078, 1183, 1274, 1463, 1573, 1694, 1729, 1859, 1862, 2002, 2156, 2197, 2299, 2366, 2548, 2717, 2926, 3146, 3211, 3388, 3458, 3718, 3724, 4004, 4394, 4598, 4732, 5434, 5852, 5929, 6292, 6422, 6916, 7007, 7436, 8281, 8788, 9196, 10241, 10868, 11011, 11858, 12103, 12844, 13013, 14014, 15379, 16093, 16562, 19019, 20449, 20482, 22022, 22477, 23716, 24167, 24206, 26026, 28028, 29887, 30758, 32186, 33124, 35321, 38038, 40898, 40964, 41743, 44044, 44954, 48334, 48412, 52052, 59774, 61516, 64372, 70642, 76076, 77077, 81796, 83486, 89908, 91091, 96668, 107653, 112651, 119548, 133133, 141284, 143143, 154154, 157339, 166972, 169169, 182182, 209209, 215306, 225302, 247247, 265837, 266266, 286286, 292201, 308308, 314678, 338338, 364364, 388531, 418418, 430612, 450604, 459173, 494494, 531674, 532532, 572572, 584402, 629356, 676676, 777062, 836836, 918346, 988988, 1002001, 1063348, 1168804, 1184183, 1464463, 1554124, 1730729, 1836692, 1860859, 2004002, 2045407, 2368366, 2719717, 2928926, 3214211, 3461458, 3721718, 4008004, 4090814, 4736732, 5050903, 5439434, 5857852, 6428422, 6922916, 7443436, 8181628, 10101806, 10878868, 12856844, 13026013, 19038019, 20203612, 22499477, 26052026, 35356321, 38076038, 44998954, 52104052, 70712642, 76152076, 89997908, 141425284, 247494247, 494988494, 989976988]

約数ペア:

[(1, 989976988), (2, 494988494), (4, 247494247), (7, 141425284), (11, 89997908), (13, 76152076), (14, 70712642), (19, 52104052), (22, 44998954), (26, 38076038), (28, 35356321), (38, 26052026), (44, 22499477), (49, 20203612), (52, 19038019), (76, 13026013), (77, 12856844), (91, 10878868), (98, 10101806), (121, 8181628), (133, 7443436), (143, 6922916), (154, 6428422), (169, 5857852), (182, 5439434), (196, 5050903), (209, 4736732), (242, 4090814), (247, 4008004), (266, 3721718), (286, 3461458), (308, 3214211), (338, 2928926), (364, 2719717), (418, 2368366), (484, 2045407), (494, 2004002), (532, 1860859), (539, 1836692), (572, 1730729), (637, 1554124), (676, 1464463), (836, 1184183), (847, 1168804), (931, 1063348), (988, 1002001), (1001, 988988), (1078, 918346), (1183, 836836), (1274, 777062), (1463, 676676), (1573, 629356), (1694, 584402), (1729, 572572), (1859, 532532), (1862, 531674), (2002, 494494), (2156, 459173), (2197, 450604), (2299, 430612), (2366, 418418), (2548, 388531), (2717, 364364), (2926, 338338), (3146, 314678), (3211, 308308), (3388, 292201), (3458, 286286), (3718, 266266), (3724, 265837), (4004, 247247), (4394, 225302), (4598, 215306), (4732, 209209), (5434, 182182), (5852, 169169), (5929, 166972), (6292, 157339), (6422, 154154), (6916, 143143), (7007, 141284), (7436, 133133), (8281, 119548), (8788, 112651), (9196, 107653), (10241, 96668), (10868, 91091), (11011, 89908), (11858, 83486), (12103, 81796), (12844, 77077), (13013, 76076), (14014, 70642), (15379, 64372), (16093, 61516), (16562, 59774), (19019, 52052), (20449, 48412), (20482, 48334), (22022, 44954), (22477, 44044), (23716, 41743), (24167, 40964), (24206, 40898), (26026, 38038), (28028, 35321), (29887, 33124), (30758, 32186)]