20783340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 68140800

約数和(自身を除く): 47357460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 59, 60, 76, 90, 95, 103, 114, 118, 171, 177, 180, 190, 206, 228, 236, 285, 295, 309, 342, 354, 380, 412, 515, 531, 570, 590, 618, 684, 708, 855, 885, 927, 1030, 1062, 1121, 1140, 1180, 1236, 1545, 1710, 1770, 1854, 1957, 2060, 2124, 2242, 2655, 3090, 3363, 3420, 3540, 3708, 3914, 4484, 4635, 5310, 5605, 5871, 6077, 6180, 6726, 7828, 9270, 9785, 10089, 10620, 11210, 11742, 12154, 13452, 16815, 17613, 18231, 18540, 19570, 20178, 22420, 23484, 24308, 29355, 30385, 33630, 35226, 36462, 39140, 40356, 50445, 54693, 58710, 60770, 67260, 70452, 72924, 88065, 91155, 100890, 109386, 115463, 117420, 121540, 176130, 182310, 201780, 218772, 230926, 273465, 346389, 352260, 364620, 461852, 546930, 577315, 692778, 1039167, 1093860, 1154630, 1385556, 1731945, 2078334, 2309260, 3463890, 4156668, 5195835, 6927780, 10391670, 20783340]

約数ペア:

[(1, 20783340), (2, 10391670), (3, 6927780), (4, 5195835), (5, 4156668), (6, 3463890), (9, 2309260), (10, 2078334), (12, 1731945), (15, 1385556), (18, 1154630), (19, 1093860), (20, 1039167), (30, 692778), (36, 577315), (38, 546930), (45, 461852), (57, 364620), (59, 352260), (60, 346389), (76, 273465), (90, 230926), (95, 218772), (103, 201780), (114, 182310), (118, 176130), (171, 121540), (177, 117420), (180, 115463), (190, 109386), (206, 100890), (228, 91155), (236, 88065), (285, 72924), (295, 70452), (309, 67260), (342, 60770), (354, 58710), (380, 54693), (412, 50445), (515, 40356), (531, 39140), (570, 36462), (590, 35226), (618, 33630), (684, 30385), (708, 29355), (855, 24308), (885, 23484), (927, 22420), (1030, 20178), (1062, 19570), (1121, 18540), (1140, 18231), (1180, 17613), (1236, 16815), (1545, 13452), (1710, 12154), (1770, 11742), (1854, 11210), (1957, 10620), (2060, 10089), (2124, 9785), (2242, 9270), (2655, 7828), (3090, 6726), (3363, 6180), (3420, 6077), (3540, 5871), (3708, 5605), (3914, 5310), (4484, 4635)]