20457958150

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{257}}^1\times {\mathrm{32491}}^1$

素因数の和:32774

約数の個数: 72

約数和(自身を含む): 44437943736

約数和(自身を除く): 23979985586

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 257, 350, 490, 514, 1225, 1285, 1799, 2450, 2570, 3598, 6425, 8995, 12593, 12850, 17990, 25186, 32491, 44975, 62965, 64982, 89950, 125930, 162455, 227437, 314825, 324910, 454874, 629650, 812275, 1137185, 1592059, 1624550, 2274370, 3184118, 5685925, 7960295, 8350187, 11371850, 15920590, 16700374, 39801475, 41750935, 58451309, 79602950, 83501870, 116902618, 208754675, 292256545, 409159163, 417509350, 584513090, 818318326, 1461282725, 2045795815, 2922565450, 4091591630, 10228979075, 20457958150]

約数ペア:

[(1, 20457958150), (2, 10228979075), (5, 4091591630), (7, 2922565450), (10, 2045795815), (14, 1461282725), (25, 818318326), (35, 584513090), (49, 417509350), (50, 409159163), (70, 292256545), (98, 208754675), (175, 116902618), (245, 83501870), (257, 79602950), (350, 58451309), (490, 41750935), (514, 39801475), (1225, 16700374), (1285, 15920590), (1799, 11371850), (2450, 8350187), (2570, 7960295), (3598, 5685925), (6425, 3184118), (8995, 2274370), (12593, 1624550), (12850, 1592059), (17990, 1137185), (25186, 812275), (32491, 629650), (44975, 454874), (62965, 324910), (64982, 314825), (89950, 227437), (125930, 162455)]