19403720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 52557120

約数和(自身を除く): 33153400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 131, 140, 161, 184, 230, 262, 280, 322, 460, 524, 529, 644, 655, 805, 917, 920, 1048, 1058, 1288, 1310, 1610, 1834, 2116, 2620, 2645, 3013, 3220, 3668, 3703, 4232, 4585, 5240, 5290, 6026, 6440, 7336, 7406, 9170, 10580, 12052, 14812, 15065, 18340, 18515, 21091, 21160, 24104, 29624, 30130, 36680, 37030, 42182, 60260, 69299, 74060, 84364, 105455, 120520, 138598, 148120, 168728, 210910, 277196, 346495, 421820, 485093, 554392, 692990, 843640, 970186, 1385980, 1940372, 2425465, 2771960, 3880744, 4850930, 9701860, 19403720]

約数ペア:

[(1, 19403720), (2, 9701860), (4, 4850930), (5, 3880744), (7, 2771960), (8, 2425465), (10, 1940372), (14, 1385980), (20, 970186), (23, 843640), (28, 692990), (35, 554392), (40, 485093), (46, 421820), (56, 346495), (70, 277196), (92, 210910), (115, 168728), (131, 148120), (140, 138598), (161, 120520), (184, 105455), (230, 84364), (262, 74060), (280, 69299), (322, 60260), (460, 42182), (524, 37030), (529, 36680), (644, 30130), (655, 29624), (805, 24104), (917, 21160), (920, 21091), (1048, 18515), (1058, 18340), (1288, 15065), (1310, 14812), (1610, 12052), (1834, 10580), (2116, 9170), (2620, 7406), (2645, 7336), (3013, 6440), (3220, 6026), (3668, 5290), (3703, 5240), (4232, 4585)]