81242280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 192

約数和(自身を含む): 305660160

約数和(自身を除く): 224417880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 103, 105, 120, 126, 140, 168, 180, 206, 210, 252, 280, 309, 313, 315, 360, 412, 420, 504, 515, 618, 626, 630, 721, 824, 840, 927, 939, 1030, 1236, 1252, 1260, 1442, 1545, 1565, 1854, 1878, 2060, 2163, 2191, 2472, 2504, 2520, 2817, 2884, 3090, 3130, 3605, 3708, 3756, 4120, 4326, 4382, 4635, 4695, 5634, 5768, 6180, 6260, 6489, 6573, 7210, 7416, 7512, 8652, 8764, 9270, 9390, 10815, 10955, 11268, 12360, 12520, 12978, 13146, 14085, 14420, 17304, 17528, 18540, 18780, 19719, 21630, 21910, 22536, 25956, 26292, 28170, 28840, 32239, 32445, 32865, 37080, 37560, 39438, 43260, 43820, 51912, 52584, 56340, 64478, 64890, 65730, 78876, 86520, 87640, 96717, 98595, 112680, 128956, 129780, 131460, 157752, 161195, 193434, 197190, 225673, 257912, 259560, 262920, 290151, 322390, 386868, 394380, 451346, 483585, 580302, 644780, 677019, 773736, 788760, 902692, 967170, 1128365, 1160604, 1289560, 1354038, 1450755, 1805384, 1934340, 2031057, 2256730, 2321208, 2708076, 2901510, 3385095, 3868680, 4062114, 4513460, 5416152, 5803020, 6770190, 8124228, 9026920, 10155285, 11606040, 13540380, 16248456, 20310570, 27080760, 40621140, 81242280]

約数ペア:

[(1, 81242280), (2, 40621140), (3, 27080760), (4, 20310570), (5, 16248456), (6, 13540380), (7, 11606040), (8, 10155285), (9, 9026920), (10, 8124228), (12, 6770190), (14, 5803020), (15, 5416152), (18, 4513460), (20, 4062114), (21, 3868680), (24, 3385095), (28, 2901510), (30, 2708076), (35, 2321208), (36, 2256730), (40, 2031057), (42, 1934340), (45, 1805384), (56, 1450755), (60, 1354038), (63, 1289560), (70, 1160604), (72, 1128365), (84, 967170), (90, 902692), (103, 788760), (105, 773736), (120, 677019), (126, 644780), (140, 580302), (168, 483585), (180, 451346), (206, 394380), (210, 386868), (252, 322390), (280, 290151), (309, 262920), (313, 259560), (315, 257912), (360, 225673), (412, 197190), (420, 193434), (504, 161195), (515, 157752), (618, 131460), (626, 129780), (630, 128956), (721, 112680), (824, 98595), (840, 96717), (927, 87640), (939, 86520), (1030, 78876), (1236, 65730), (1252, 64890), (1260, 64478), (1442, 56340), (1545, 52584), (1565, 51912), (1854, 43820), (1878, 43260), (2060, 39438), (2163, 37560), (2191, 37080), (2472, 32865), (2504, 32445), (2520, 32239), (2817, 28840), (2884, 28170), (3090, 26292), (3130, 25956), (3605, 22536), (3708, 21910), (3756, 21630), (4120, 19719), (4326, 18780), (4382, 18540), (4635, 17528), (4695, 17304), (5634, 14420), (5768, 14085), (6180, 13146), (6260, 12978), (6489, 12520), (6573, 12360), (7210, 11268), (7416, 10955), (7512, 10815), (8652, 9390), (8764, 9270)]