81921996

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:165

約数の個数: 192

約数和(自身を含む): 250252800

約数和(自身を除く): 168330804

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 37, 38, 39, 52, 54, 57, 74, 76, 78, 83, 108, 111, 114, 117, 148, 156, 166, 171, 222, 228, 234, 247, 249, 332, 333, 342, 351, 444, 468, 481, 494, 498, 513, 666, 684, 702, 703, 741, 747, 962, 988, 996, 999, 1026, 1079, 1332, 1404, 1406, 1443, 1482, 1494, 1577, 1924, 1998, 2052, 2109, 2158, 2223, 2241, 2812, 2886, 2964, 2988, 3071, 3154, 3237, 3996, 4218, 4316, 4329, 4446, 4482, 4731, 5772, 6142, 6308, 6327, 6474, 6669, 8436, 8658, 8892, 8964, 9139, 9213, 9462, 9711, 12284, 12654, 12948, 12987, 13338, 14193, 17316, 18278, 18426, 18924, 18981, 19422, 20501, 25308, 25974, 26676, 27417, 27639, 28386, 29133, 36556, 36852, 37962, 38844, 39923, 41002, 42579, 51948, 54834, 55278, 56772, 58266, 58349, 61503, 75924, 79846, 82004, 82251, 82917, 85158, 109668, 110556, 116532, 116698, 119769, 123006, 159692, 164502, 165834, 170316, 175047, 184509, 233396, 239538, 246012, 246753, 329004, 331668, 350094, 359307, 369018, 479076, 493506, 525141, 553527, 700188, 718614, 738036, 758537, 987012, 1050282, 1077921, 1107054, 1437228, 1517074, 1575423, 2100564, 2155842, 2214108, 2275611, 3034148, 3150846, 4311684, 4551222, 6301692, 6826833, 9102444, 13653666, 20480499, 27307332, 40960998, 81921996]

約数ペア:

[(1, 81921996), (2, 40960998), (3, 27307332), (4, 20480499), (6, 13653666), (9, 9102444), (12, 6826833), (13, 6301692), (18, 4551222), (19, 4311684), (26, 3150846), (27, 3034148), (36, 2275611), (37, 2214108), (38, 2155842), (39, 2100564), (52, 1575423), (54, 1517074), (57, 1437228), (74, 1107054), (76, 1077921), (78, 1050282), (83, 987012), (108, 758537), (111, 738036), (114, 718614), (117, 700188), (148, 553527), (156, 525141), (166, 493506), (171, 479076), (222, 369018), (228, 359307), (234, 350094), (247, 331668), (249, 329004), (332, 246753), (333, 246012), (342, 239538), (351, 233396), (444, 184509), (468, 175047), (481, 170316), (494, 165834), (498, 164502), (513, 159692), (666, 123006), (684, 119769), (702, 116698), (703, 116532), (741, 110556), (747, 109668), (962, 85158), (988, 82917), (996, 82251), (999, 82004), (1026, 79846), (1079, 75924), (1332, 61503), (1404, 58349), (1406, 58266), (1443, 56772), (1482, 55278), (1494, 54834), (1577, 51948), (1924, 42579), (1998, 41002), (2052, 39923), (2109, 38844), (2158, 37962), (2223, 36852), (2241, 36556), (2812, 29133), (2886, 28386), (2964, 27639), (2988, 27417), (3071, 26676), (3154, 25974), (3237, 25308), (3996, 20501), (4218, 19422), (4316, 18981), (4329, 18924), (4446, 18426), (4482, 18278), (4731, 17316), (5772, 14193), (6142, 13338), (6308, 12987), (6327, 12948), (6474, 12654), (6669, 12284), (8436, 9711), (8658, 9462), (8892, 9213), (8964, 9139)]