19627740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 67931136

約数和(自身を除く): 48303396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 30, 33, 36, 44, 45, 46, 55, 60, 66, 69, 90, 92, 99, 110, 115, 132, 138, 165, 180, 198, 207, 220, 230, 253, 276, 330, 345, 396, 414, 431, 460, 495, 506, 660, 690, 759, 828, 862, 990, 1012, 1035, 1265, 1293, 1380, 1518, 1724, 1980, 2070, 2155, 2277, 2530, 2586, 3036, 3795, 3879, 4140, 4310, 4554, 4741, 5060, 5172, 6465, 7590, 7758, 8620, 9108, 9482, 9913, 11385, 12930, 14223, 15180, 15516, 18964, 19395, 19826, 22770, 23705, 25860, 28446, 29739, 38790, 39652, 42669, 45540, 47410, 49565, 56892, 59478, 71115, 77580, 85338, 89217, 94820, 99130, 109043, 118956, 142230, 148695, 170676, 178434, 198260, 213345, 218086, 284460, 297390, 327129, 356868, 426690, 436172, 446085, 545215, 594780, 654258, 853380, 892170, 981387, 1090430, 1308516, 1635645, 1784340, 1962774, 2180860, 3271290, 3925548, 4906935, 6542580, 9813870, 19627740]

約数ペア:

[(1, 19627740), (2, 9813870), (3, 6542580), (4, 4906935), (5, 3925548), (6, 3271290), (9, 2180860), (10, 1962774), (11, 1784340), (12, 1635645), (15, 1308516), (18, 1090430), (20, 981387), (22, 892170), (23, 853380), (30, 654258), (33, 594780), (36, 545215), (44, 446085), (45, 436172), (46, 426690), (55, 356868), (60, 327129), (66, 297390), (69, 284460), (90, 218086), (92, 213345), (99, 198260), (110, 178434), (115, 170676), (132, 148695), (138, 142230), (165, 118956), (180, 109043), (198, 99130), (207, 94820), (220, 89217), (230, 85338), (253, 77580), (276, 71115), (330, 59478), (345, 56892), (396, 49565), (414, 47410), (431, 45540), (460, 42669), (495, 39652), (506, 38790), (660, 29739), (690, 28446), (759, 25860), (828, 23705), (862, 22770), (990, 19826), (1012, 19395), (1035, 18964), (1265, 15516), (1293, 15180), (1380, 14223), (1518, 12930), (1724, 11385), (1980, 9913), (2070, 9482), (2155, 9108), (2277, 8620), (2530, 7758), (2586, 7590), (3036, 6465), (3795, 5172), (3879, 5060), (4140, 4741), (4310, 4554)]