20199872325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{257}}^1\times {\mathrm{2903}}^1$

素因数の和:3211

約数の個数: 72

約数和(自身を含む): 35396716608

約数和(自身を除く): 15196844283

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 257, 285, 361, 475, 771, 1083, 1285, 1425, 1805, 2903, 3855, 4883, 5415, 6425, 8709, 9025, 14515, 14649, 19275, 24415, 27075, 43545, 55157, 72575, 73245, 92777, 122075, 165471, 217725, 275785, 278331, 366225, 463885, 746071, 827355, 1047983, 1378925, 1391655, 2238213, 2319425, 3143949, 3730355, 4136775, 5239915, 6958275, 11191065, 14175349, 15719745, 18651775, 26199575, 42526047, 55955325, 70876745, 78598725, 212630235, 269331631, 354383725, 807994893, 1063151175, 1346658155, 4039974465, 6733290775, 20199872325]

約数ペア:

[(1, 20199872325), (3, 6733290775), (5, 4039974465), (15, 1346658155), (19, 1063151175), (25, 807994893), (57, 354383725), (75, 269331631), (95, 212630235), (257, 78598725), (285, 70876745), (361, 55955325), (475, 42526047), (771, 26199575), (1083, 18651775), (1285, 15719745), (1425, 14175349), (1805, 11191065), (2903, 6958275), (3855, 5239915), (4883, 4136775), (5415, 3730355), (6425, 3143949), (8709, 2319425), (9025, 2238213), (14515, 1391655), (14649, 1378925), (19275, 1047983), (24415, 827355), (27075, 746071), (43545, 463885), (55157, 366225), (72575, 278331), (73245, 275785), (92777, 217725), (122075, 165471)]